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** DevelopmentHell/ComicBookAdaptations
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Compare to ExtremelyLengthyCreation, where a work did take a long time to come to fruition, but with no problems involved.

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Compare to ExtremelyLengthyCreation, where a work did take a long time to come to fruition, but with no notable problems involved.

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Give well-known example


Development Hell becomes a sort of self-reinforcing feedback loop over time--as one director gets fed up and quits, the project is assigned to a new director, who orders a new screenplay with a new vision, which results in producers demanding changes, hiring a script doctor for rewrites: wash, rinse, repeat etc. Projects in other media (recordings by rock bands) can sink into similar cesspits. Sometimes examples of this trope lead into cases of WhatCouldHaveBeen or TrailerDelay. If the team behind the medium is frustrated enough, it can result in ImplementingTheIncomplete.

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Development Hell becomes a sort of self-reinforcing feedback loop over time--as one director gets fed up and quits, the project is assigned to a new director, who orders a new screenplay with a new vision, which results in producers demanding changes, hiring a script doctor for rewrites: wash, rinse, repeat etc.

Projects in other media (recordings by rock bands) can sink into similar cesspits.cesspits, with a well-known music example being Guns 'N Roses' lengthy delays on ''Chinese Democracy''. Sometimes examples of this trope lead into cases of WhatCouldHaveBeen or TrailerDelay. If the team behind the medium is frustrated enough, it can result in ImplementingTheIncomplete.
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Add music poiint


The state where an announced creative project becomes stuck at the creation stage for years.

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The state where an announced creative project becomes stuck in limbo at the creation stage for years.



Development Hell becomes a sort of self-reinforcing feedback loop over time--as one director gets fed up and quits, the project is assigned to a new director, who orders a new screenplay with a new vision, which results in producers demanding changes, wash, rinse, repeat etc. Projects in other media can sink into similar cesspits. Sometimes examples of this trope lead into cases of WhatCouldHaveBeen or TrailerDelay. If the team behind the medium is frustrated enough, it can result in ImplementingTheIncomplete.

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Development Hell becomes a sort of self-reinforcing feedback loop over time--as one director gets fed up and quits, the project is assigned to a new director, who orders a new screenplay with a new vision, which results in producers demanding changes, hiring a script doctor for rewrites: wash, rinse, repeat etc. Projects in other media (recordings by rock bands) can sink into similar cesspits. Sometimes examples of this trope lead into cases of WhatCouldHaveBeen or TrailerDelay. If the team behind the medium is frustrated enough, it can result in ImplementingTheIncomplete.

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-->-- '''WebVideo/TechnologyConnections''', on the RCA UsefulNotes/{{CED}} {{UsefulNotes/CED}} Videodisk format.



* DevelopmentHell/{{Music}}

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* DevelopmentHell/{{Music}}{{DevelopmentHell/Music}}



* DevelopmentHell/{{Other}}

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* DevelopmentHell/{{Other}}DevelopmentHell/OtherMedia
* DevelopmentHell/RealLife



!!Other examples:
[[foldercontrol]]
[[folder:Comic Books]]
* An animated ''ComicBook/ElfQuest'' movie has been "coming soon" since the mid eighties. Though much of the (albeit scarce) pre-production art looks great, it's still never gotten further than that and will likely never be produced.
* Kevin Smith's smash ''ComicBook/{{Daredevil}}'' relaunch got him on a comics kick which turned out to be more than he could handle. His ''Spider-Man/Black Cat'' miniseries had a gap of over three years between issues 3 and 4. During that time, most fans had dismissed the remaining issues as vaporware -- as they have his ''Daredevil/Bullseye'' miniseries, whose only issue to date was published in 2002.
* The manga-inspired ''ComicBook/BattleChasers'' was meant to be Joe Madureira's magnum opus, spanning several years and hundreds of issues. However, thanks to his obsession with playing video games and, in the early 2000s, pretty much abandoning the industry to draw concept art for start-up game publishers, it petered out at about ten issues, with the final issue having a delay of about 1 1/2 years and ending on gigantic cliffhangers. A continuation had been promised, but going on eight years and beyond later it still hasn't materialized.
** In February of 2015, [[http://www.polygon.com/2015/2/26/8112963/battle-chasers-game-comic-joe-madureira it was announced that the comic book series might a comeback along with a game adaptation if Madureira's campaign is successful.]] And then, five years later... still nothing.
** In April of 2021, [[https://www.hollywoodreporter.com/heat-vision/joe-madureira-returns-to-battle-chasers-after-a-20-year-hiatus Madureira again announced a three-issue conclusion for the series to be launched later that year]]. This time, potentially improving the chances of the series actually coming out, Madureira would only be writing the series, turning art duties over to Ludo Lullabi.
* Devil's Due Publishing has been putting off publishing ''Franchise/{{Halloween}}'' comics, including the third and final issue of ''Halloween: The First Death Of Laurie Strode'' and the miniseries ''The Mark of Thorn'' (which had at least a dozen covers revealed) over and over again for somewhat vague reasons.
* Creator/NeilGaiman:
** His introduction to ''[[ComicBook/TheSandman The Sandman: Endless Nights]]'' mentions a story called ''Obsessional'' that he plotted with the artist of ''Going Inside''. It involves the population of Manhattan joining a procession into the East River.
** He was planning to do a Franchise/{{Batman}} story illustrated by painter SteveBisley, which was to be titled "''Night Circus''". This was during an interview in about 1992, and the story is still yet to appear.
** Gaiman withdrew from ''ComicBook/SwampThing'' in protest over the controversial censorship of the intended climax of Rick Veitch's previous run.
* ''Winter World'' was a 3-issue miniseries written by Creator/ChuckDixon and published in 1987, and it was meant to be followed by two sequels, ''Winter Sea'' and ''Winterwar''. ''Winter Sea'' was meant to be published by Creator/EpicComics but this never happened. Eventually ''Winter World'' was republished in 2011 along with ''Winter Sea'' as its second part. The third part however remains unpublished.
* ''Franchise/{{Alien}}'':
** ''Aliens: Crusade'' and ''Aliens: Matrix'' were two storylines meant for publication in ''Aliens'' magazine. However the magazine was then cancelled after issue #22 meaning that ''Matrix'' and the last two parts of ''Crusade'' were never published.
** ''Aliens: Colonial Marines - Rising Threat'' was an 8-issue limited series written by Creator/BrianWood and meant to be published from 2019 to 2020. However it was canceled following accusations of sexual misconduct levied against Wood.
* ''Batman: Cyber Revolution'' was a 5-part miniseries written by Ron Perazza and meant to tie in with a toyline from Mattel. The comic was solicited for publication in 2004, but both the toyline and comic were scrapped.
* DC's "[[ComicBook/AllStarDCComics All Star]]" line has several examples. As the line has been discontinued and creators have moved on to other projects, it seems unlikely that they will be revived:
** ''All-Star Franchise/WonderWoman'' by Creator/AdamHughes. Hughes has shown off some concept art, but has since moved on to ''ComicBook/BeforeWatchmen''.
** ''All-Star ComicBook/{{Batgirl}}'' by Creator/GeoffJohns and J G Jones. Announced in 2006 but no sign as of mid-2012.
** ''ComicBook/AllStarBatmanAndRobinTheBoyWonder'' #11 and #12 don't look like they're ever going to happen. A 6-issue limited series follow-up called ''Dark Knight: Boy Wonder'' was announced in 2010 as the definitive finale of the storyline, but as of 2020, not a single issue has actually been released.
* ''[[ComicBook/SamAndMax Sam and Max Plunge Through Space]]'' was a concept Steve Purcell was working with as a game and a comic, variously. It never got made and beyond fan discussion it probably won't see the light of day.
* In July 2015, Marvel announced that Tim Seeley and Logan Faerber were working on a new ''Comicbook/{{Blade}}'' series starring Blade's daughter, Fallon Gray. As of April 2022, it's apparently still on the way, but now as ''Bloodline: Daughter Of Blade'', with his daughter renamed to Brielle. The original creative team is no longer involved and it'll now be written by Danny Lore and illustrated by Karen S. Darboe.
* Steve Moncuse announced in a [[http://www.comicbookresources.com/?page=article&id=29977 2010 interview]] that he would be reviving ''ComicBook/FishPolice''. This is still the only acknowledgement of such a revival.
* In issue #12 of ''Creator/SergioAragones Funnies'', Sergio says that the title would continue with another publisher. Said continuation has yet to come.
* ''ComicBook/WhiteSand'' was written somewhere around 2005, and has since sat on Brandon Sanderson's shelf, awaiting a rewrite that would satisfy the author enough to publish it. The problem was, ever since that time Sanderson was writing either ''Literature/{{Mistborn}}'', ''Literature/TheStormlightArchive'' or some other project and the rewrite was pushed back year after year until the book was rescued in 2016 by Dynamite adapting it into a graphic novel.
* A TruerToTheText ComicBookAdaptation of ''[[Literature/TheBookOfTheNamed Ratha's Creature]]'' was originally supposed to come out in Fall 2014 but has yet to come out as of Summer 2019. It's still in production as of 2018.
* Like many things, the UsefulNotes/COVID19Pandemic affected Creator/MarvelComics, which forced them to halt production for a couple of months. However, even after they started back up, [[https://www.gamesradar.com/missing-marvel-titles-2020/ a number of series still never saw print or resume production]], including a ''[[ComicBook/ThePunisher Punisher]] vs. Barracuda'' miniseries, which would've seen the titular Barracuda, a popular villain from ''ComicBook/ThePunisherMAX'', become a CanonImmigrant to the classic Marvel Universe, and a reboot of ''ComicBook/NewWarriors'' set to debut as a spinoff to the ''ComicBook/{{Outlawed}}'' event (''Outlawed'' itself was also significantly truncated). [[https://www.youtube.com/watch?v=5PCWUCv1rnU The trailer for the new New Warriors series is still up on YouTube however]].
* In 2007 there were [[http://www.blackfilm.com/20070202/features/sylvainwhite.shtml talks]] of an adaptation of ''ComicBook/{{Ronin}}'' for the big screen, and in 2014 the Syfy channel [[https://www.hollywoodreporter.com/live-feed/syfy-adapting-frank-millers-dc-698759 announced]] they were going to adapt it as a miniseries. Nothing more has been said about either of them.
* A graphic novel based on Nintendo's ''VideoGame/{{ARMS}}'' was announced back in 2017 with initial release date of Fall 2018. After getting delayed twice, it was finally stated to have been [[https://bumbleking.com/projects/comic-books/dark-horse-comics/ cancelled in March 2021.]]
* Adam Warren, in 1999, teased a crossover between his incarnation of the LightNovel/DirtyPair and Franchise/{{Superman}}, but nothing ever came of it besides a single promotional image.
[[/folder]]

[[folder:Cross-Medium]]
* A new installment in the ''WesternAnimation/XiaolinShowdown'' franchise has been in this for ''six'' years. In fact, [[https://www.kickstarter.com/projects/christyhui/xiaolinshowdown?ref=backerkit two]] [[https://www.youtube.com/watch?v=zn2-s1-2jQE ideas]] were discussed, but their status is currently unknown. It's also unknown whether the franchise's perfectionist nature and the death of Stephen Sustarsic, one of the creative forces behind the said franchise, have to do with all that rack, given that Sustarsic was replaced by Mark Zaslove, a friend of his, as a story editor of ''WesternAnimation/XiaolinChronicles''. However, the franchise's creator Christy Hui recently hinted [[https://twitter.com/christyhuichat/status/1304215840087134208 about the Xiaolin Warriors' return]], so it's very likely the new installment in the franchise will be eventually SavedFromDevelopmentHell.
[[/folder]]

[[folder:Fan Works]]
* Ian Flynn's ''Franchise/SonicTheHedgehog'' fan comic ''Other-M'' suddenly stopped after thirty issues, despite plans for an "Act III". Considering that he went on to be [[PromotedFanboy the head writer for the official comics]] just a few years later in 2006, and continues to retain the role even after the "[[ComicBook/SonicTheHedgehogArchieComics Archie Comics]]" continuity ended in favor of starting fresh with "[[ComicBook/SonicTheHedgehogIDW IDW]]", it's very likely to stay this way.
* Fan works related to ''Toys/{{Bionicle}}'':
** Both of the biggest {{CGI}} fan-film projects, ''Quest of the Toa'' and ''BIONICLE: The Next Generation''. The first received notoriety among fans very fast for being produced (voice acting aside) by a single person. It seemed to have gotten pretty far, and was set to be released at the end of 2006, but around 2007, the author disappeared. He attempted to restart the project several years later, with little success, and he uploaded the last teaser video in 2010.\\\
As for ''BNG'', it's had a very TroubledProduction. Originally meant to be a series of feature-length 3D films, the project eventually separated into a 2D and 3D "team". The former produced [[https://www.youtube.com/watch?v=uMkbFBV7oBA a video short]] in the style of the old official ''BIONICLE'' Flash videos but due to the creators' other occupations, the project got canceled. However, the 3D team is still said to be functioning and working on a fan film of their own.
** ''Quest of the Toa'' had two sister-projects going on: a fan-game based on the movie and the ''Lewa Q&A'' comedy series. Both have met such a fate, though to make up for losing the game files, the game's creator has set his sights on finishing a smaller fan project, of undisclosed nature.
* Chapter 2 of the ''Franchise/StarWars'' fan film series ''IMPS: The Relentless'' was in post-production, "almost done", for four years. It was finally released November 2009. Only 6 more to go according to the website.
* The ''Series/DoctorWho'' fan film ''Devious'', which follows a half-regenerated third Doctor working for the Time Lords, has been filming on and off since 1995. In 2009, a 12-minute preview, including the entire Jon Pertwee scene, was included on the DVD of "[[Recap/DoctorWhoS6E7TheWarGames The War Games]]". Beginning in 2018, twenty-three years after it began production, ''Devious'' finally began releasing serialized episodes over on Youtube, with three presently availbile.
* An AnimatedAdaptation of the "Running Wild" arc of ''ComicBook/SonicTheComic'' [[https://www.youtube.com/watch?v=MLJOzTiw0aE was in production]] for the 20th anniversary but nothing has been heard of it since the initial preview.
* ''Horse Women'', the ''WebVideo/FriendshipIsWitchcraft'' adaptation of the first ''Equestria Girls'' film, is only partially done. The first part came out in 2014, the second part came out 2 years later, and that has been it.
* ''WebVideo/AvatarTheLastPuppetBender'':
** The video "Puppetbenders - Where Are They Now- Part 1" was uploaded in 2010. A Part 2 hasn't surfaced, though a few other ''Puppetbender'' skits have been released since.
** ''Avatar: Legend of the Puppetbender'', a ''WesternAnimation/TheLegendOfKorra'' parody, was teased for summer 2012. Nothing else has been heard about the skit. Skits were added onto the Blu-Rays for the cartoon, but those are separate from the original ''Avatar: Legend of Puppetbender'' short(s).
* In 2011, Deviantart user LoveRobin posted [[https://www.deviantart.com/loverobin/art/The-Lies-That-Bind-Peek1-210416590 two]] [[https://www.deviantart.com/loverobin/art/The-Lies-That-Bind-Peek2-212690078 teasers]] for an upcoming WesternAnimation/KimPossible fanfic called "The Lies That Bind". The plot would have focused on Kim helping Bonnie deal with her pregnancy by Ron as well as a possible Bonnie/Kim relationship. After more than 10 years, it's still unclear when or if the full story will be written.
* The 3rd entry in ''VideoGame/MegaManADayInTheLimelight'' (featuring the Mega Man 3 Robot Masters in Mega Man 4) had a demo released in 2013 with four playable stages, but as of July 2021, there has been no word or announcement regarding development.
[[/folder]]

[[folder:Films (In-Universe)]]
* In ''Film/{{Argo}}'', this is the supposed fate of the ''Argo'' film project, after the U.S. embassy personnel are rescued from Iran. ("It's in turnaround.")
* ''Film/TheLastOfSheila'': This is why Tom the screenwriter hates {{Jerkass}} movie producer Clinton Greene. Clinton bought the option to Tom's dream script some years ago, and refuses to make it, and also refuses to let go of the option.
[[/folder]]

[[folder:Literature]]
* Donald Knuth's ''The Art of Computer Programming'' was started in 1962 (which may as well be the Bronze Age as far as computer programming is concerned) and not all the volumes are out yet. Initially not helped by Knuth deciding to create a typesetting system from scratch after the reissue of the first volume in 1977. He began development of the typesetting system (called [=TeX=]) in 1978, and it ended up in its own development hell as well, the input format not being finalized until 1989.
* Creator/TimothyZahn and Creator/MichaelStackpole collaborated on a six-issue Franchise/StarWarsExpandedUniverse comic for the ''Literature/XWingSeries'' which bridged over into Zahn's [[Literature/TheThrawnTrilogy Thrawn]] [[Literature/HandOfThrawn books]], called ''[[http://starwars.wikia.com/wiki/The_Reenlistment_of_Baron_Fel The Reenlistment Of Baron Fel]]''. But the ''X-Wing Series'' comics were canceled [[NoEnding abruptly]]. So Zahn and Stackpole worked on the script and turned it into a four-chapter novella, but Del Ray did not buy that script. Both versions are languishing on their hard drives, and it's been something like ten years since the ''X-Wing Series'' was going.
** It's particularly frustrating when you see that in 2005 someone came out with a three-issue ''X-Wing Series'' comic, ''[[RebelLeader Rogue Leader]]'', which had nothing to do with Stackpole and is generally considered inferior due to OffModel art, rampant [[DecompressedComic decompression]], and a basically pointless storyline, without even any good character interaction, that could be summed up in two sentences: "The Empire will fight [[TheRemnant even without an Emperor]], and some of its people are monsters. Luke Skywalker leaves Rogue Squadron to do Jedi things." It's likely dead now that the ''Star Wars'' literature written prior to the introduction of the sequel trilogy is no longer canon.
* Creator/StephenieMeyer:
** She [[CreatorBreakdown put off writing]] ''[[Literature/{{Twilight}} Midnight Sun]]'' because an unfinished copy was leaked. She said in 2008 that if she can go two years without hearing anyone mention it, she may begin work on it again once "everyone's forgotten about it". It was finally released in August 2020.
** She also has talked about working or planning to work on a story from Renesmee's point of view, a story from Leah's point of view, a mermaid story, a ghost story, and a time travel story. There's no sign of any of these. Nor of her ''Literature/TheHost2008'' sequel.
* ''Literature/ASongOfIceAndFire'': After the first three books were published over four years, ''A Feast for Crows'' took five years to complete due to an aborted five-year TimeSkip in the plot. ''A Dance with Dragons'' took six years to complete. ''The Winds of Winter'' is taking more than ten years to write. The delays over the books caused ''Series/GameOfThrones'' to [[OvertookTheManga overtake the books]] and be completed before ''Winds'' even got a release date.
** One reason for the long wait is that he writes the books with [[https://slate.com/technology/2014/05/george-r-r-martin-writes-on-dos-based-wordstar-4-0-software-from-the-1980s.html Wordstar, a DOS-based word processing program]]. However, the UsefulNotes/COVID19Pandemic caused him to self-isolate and he wrote "hundreds and hundreds of pages" during 2020 on ''The Winds of Winter''.
* Another book example is the Creator/HarlanEllison-edited anthology ''The Last Dangerous Visions'' (sequel to ''Literature/DangerousVisions'' and ''Literature/AgainDangerousVisions''). It was originally announced for 1973 and Ellison claimed he was eventually going to release it until his unfortunate passing in 2018. Its fate remains unclear.
** There's even a (short) book about this fiasco, ''The Book on the Edge of Forever'', by author Christopher Priest (most famous for ''The Prestige''). When you consider that TLDV was slated to include stories by long-dead authors such as Frank Herbert, Alfred Bester, and Cordwainer Smith (who died in 1966!!), this is the very pinnacle of development hell. Priest's "The Last Deadloss Visions," the basis for ''The Book on the Edge of Forever'', can be read [[http://web.archive.org/web/20000902203835/http://sf.www.lysator.liu.se/sf_archive/sf-texts/Ansible/Last_Deadloss_Visions,Chris_Priest here]].
*** Cordwainer Smith's story, "Himself in Anachron", was published in a collection, The Rediscovery of Man: The Complete Short Science Fiction of Cordwainer Smith. Ellison was not happy, but eventually some sort of settlement was made.
** Creator/JMichaelStraczynski announced on Patreon and Twitter that the book would be ready to submit for publication Spring 2021. In September 2021 he tweeted that it was now completed and with an agency, who were looking for a publisher.
* Creator/DianeDuane has been somewhat notorious among her fans for this. In her Literature/YoungWizards series, there was an eight-year gap between the release of ''A Wizard Abroad'' and ''The Wizard's Dilemma'', and a five-year gap between ''Wizards at War'' and ''A Wizard of Mars'', which was released in April 2010 after getting pushed back by its publishers about six times. Finally, there is the [[Literature/TheTaleOfTheFive Tale of the Five]] series which has lain unfinished for nearly eighteen years now, with the last part, ''The Door into Starlight'', having gone unfinished since 1992, but she promises she is still working on it.
* David Gerrold's fans have been waiting for the fifth Literature/TheWarAgainstTheChtorr novel (''A Method for Madness'') since at least 1994. And it's only the third-to-last in the series. In 2017, ''A Method for Madness'' was slated to be the title for the sixth book, with the fifth retitled ''A Nest for Nightmares''. It's unknown whether there will be a seventh.
* Quite a few by Creator/NeilGaiman. In the world of ''Literature/{{Neverwhere}}'', ''The Seven Sisters''. In the world of ''Literature/{{Stardust}}'', ''Literature/AmericanGods'', and ''Literature/AnansiBoys'', ''Wall'' (the prologue has been published) and a story about Tristran going to Hell in a hot air balloon.
* ''The Captal's Tower'', third book in Creator/MelanieRawn's ''[[Literature/TheExiles Exiles Trilogy]]'', is still nowhere to be seen 13 years after the release of the second book.
* Creator/DavidWeber is responsible for this in two series.
** The Hell’s Gate Series, cowritten with Linda Evans, ended the second book on a cliffhanger and it took David Weber and new co-author Joelle Presby 8 years to bring out the third book. As of writing that was 4 years ago, with no progress reported on book 4.
** His ''Literature/PrinceRoger'' collaboration with Creator/JohnRingo has had no development since 2005 in spite of fandom interest in the series continuing. A Website/FaceBook post by Ringo suggests he's looking to change that status, however.
* There were rumors for years about a sequel to ''Literature/ThePrincessBride'' called ''Buttercup's Baby''. In some editions of ''The Princess Bride'', this sequel was mentioned in the epilogue and was "having trouble getting published due to legal problems with S. Morgenstern's estate". An address was also listed that readers could write to for information. This was of course, completely fictional since S. Morgenstern is an alias made up by the REAL author, William Goldman. Still, people who wrote in got a sample chapter (which was simply published in later editions). In 2007, Goldman stated he actually wanted to write it, but was having trouble coming up with ideas. Nothing has been heard since. Goldman's death in 2018 hasn't helped matters.
* Creator/OrsonScottCard and Kathryn H. Kidd's ''Rasputin'', a sequel to 1994's ''Lovelock'' and the second in ''The Mayflower Trilogy''. Still listed as a work in progress on Card's website.
** Card has a similar situation with his ''Pastwatch'' series; as of 2010, he stated that he was still wanting to work on the series.
* Universercus, the promised third book in Gillian Rubenstein's Galax-Arena trilogy, is yet to be more than briefly mentioned at the end of Terra Farma (which was published in 2001). Even though the author has published books since then and left the plot gaping open!
* For the ''Literature/WarriorCats'' series, they announced in Feb 2010 that there would be some sort of online multiplayer game based on the books. They picked beta testers in March 2010, saying that the game would be out at the end of 2010. Though for a while they kept listing the release of the game in the "marketing/publicity" section for each new book in [=HarperCollins=]' catalog, the beta testers never got another message after the one saying they were picked to be one, the gamemakers didn't make any posts on the official forum to keep fans updated on the game's progress though they'd promised to (to the point that the subforum for it was, eventually, removed because it confused new members). There have been one or two surveys about what fans would like in a game since then, but they have never made any official statements saying whether or not it's cancelled.
* A ''Film/GoneWithTheWind'' sequel entitled "Tara" was nearly published by author Anne Edwards in the 1980s; it was apparently well-written, as the few who read it gave it very good reviews. It was never published due to legal problems with the estate of Margaret Mitchell.
* ''The Repossession Mambo'' (which was adapted as the film ''Film/RepoMen'') was written in 1996 but did not find a publisher until 2008. However, the manuscript had been circulating in Hollywood for some time and the film was greenlighted a few years before the book was published. The film also suffered through post-production hell as Universal shelved it for two years.
* ''Literature/TheRailwaySeries'' was slated to have a book titled ''Barry the Rescue Engine'', but Christopher Awdry has not yet completed or released it.
* ''The Last Great Tortoise Race'', the third and final ''Literature/NurseryCrime'' book by Creator/JasperFforde. [[https://web.archive.org/web/20120415042948/http://www.jasperfforde.com/nextnextbook.html Its page on his website said it would be published "Spring 2012"]], but said Spring passed with no such book and the page was taken down, and the current "upcoming books" page [[https://www.jasperfforde.com/special.html doesn't mention it at all]].
* A revised version of ''Literature/MassEffectDeception'' was promised by Creator/BioWare in 2012 after readers pointed out its many continuity errors. As of 2019, there has been no news on when or if it will be released.
* The fourth book in ''Literature/TheMillenniumTrilogy'' (which was originally planned as ten books). Stieg Larsson had a 75% completed manuscript when passing away but it has never been published due to an ownership dispute (Larsson's then-girlfriend claims to hold the rights since she retains the computer that held the manuscript but after Larsson died, his parents got the rights due to Swedish law giving the properties of a person who died unmarried to their surviving parents or next of kin). Since Larsson could not get married due to Swedish law making any married couple public (Larsson had made many enemies as a news reporter and he believed that his life becoming public would allow him to be the victim of an assassination, therefore insisting that his privacy be protected), his girlfriend tried to use this as an attempt to gain the rights (since the two were already very much a couple otherwise) but failed to convince the courts. At this point, any attempt to complete the manuscript is near impossible. Because of this, the publishers requested another writer to continue the series despite not being based from Larsson's manuscripts. The fourth book, ''The Girl in the Spider's Web'', was released in 2015, and received mixed reviews.
* Creator/BruceCoville's ''Literature/TheUnicornChronicles''. After writing books one and two in fairly quick succession (1994 and 1999 respectively), and leaving the captive audience with a massive cliffhanger, he then dropped off the face of the earth for nine years before publishing the third book in 2008... which ends with another cliffhanger. Coville even [[LampshadeHanging lampshades]] this in his author's note, saying that he feared fans of the first books would have outgrown the series before he finished it. Fortunately, ''The Last Hunt'' was released in June 2010, less than two years after ''Dark Whispers''.
** Coville also has a number of books he'd LIKE to write, including further installments in ''The Unicorn Chronicles'', the ''Literature/MagicShop'' series, the ''Nina Tanleven'' series and others. Unfortunately, publishers don't seem interested. The truly curious can find references to many of these works and others in his replies on the guestbook of his official website.
* The tenth and final book in the ''Literature/NightWorld'' series. It's been more than a decade since the last book came out, and the publishers even re-released the earlier books in pretty omnibuses in anticipation of Strange Fate. Alas, she is still writing it.
* ''Literature/MythOMania'' books IX, X, and XI landed here in 2003, after Hyperion let the series go out of print. IX and X were SavedFromDevelopmentHell in 2013 and 2014, respectively, and published by Stone Arch under the titles ''Literature/HitTheRoadHelen'' and ''Literature/GetLostOdysseus'' However, XI remains unfinished. According to the epilogue of [[Literature/GoForTheGoldAtalanta VIII]], it would retell Jason's search for the Golden Fleece. Its delay has received some in-universe lampshading.
* ''Literature/TheWiseMansFear'', the second book of ''Literature/TheKingkillerChronicle'', was published in 2011, three years after its initially-anticipated release date. Despite Patrick Rothfuss having released the companion novella ''Literature/TheSlowRegardOfSilentThings'' in 2014, the third book of the trilogy is still nowhere in sight.
* Markus Zusak (''Literature/TheBookThief'') has been writing his next novel "Bridge of Clay" for nearly a decade. The book was originally supposed to be released in 2011. [[SavedFromDevelopmentHell It was finally released in 2018]], to rave reviews.
* ''Scream of the White Bears'' was a {{xenofiction}} book by David Clement-Davies. It was about polar bears dealing with global warming. The story involved a [[TheProphecy prophecy]] where a cub with one black paw would be born that could save the species. Unfortunately, the book's project didn't get enough funding and the book was never published.
* {{Literature/Worm}} was preceded by years of failed drafts. That's part of why so many minor characters have fleshed out backstories -- several were originally planned to be the protagonist in earlier versions of the story.
* At the end of ''ComicBook/TheAdventuresOfOokAndGlukKungFuCavemenFromTheFuture'', there is a sneak peek at a sequel, but there is currently no word on when or if it will be released. Given that the original book was pulled from publication in 2021 for depictions of Asian stereotypes, it's safe to say that no sequel will ever get published.
* ''LightNovel/TheUnexploredSummonBloodSign'' has an in-universe example. Lu mentions that she's wearing the impractical costume she is because a {{Wuxia}} film is being shot in her neighbourhood. Nine volumes later, she's still wearing it.
* Nonfiction example: shortly after Creator/JimHenson died, UsefulNotes/PulitzerPrize winner Ron Powers was chosen [[https://muppet.fandom.com/wiki/Untitled_Jim_Henson_biography by his family to write an authorized biography]]. In 1993 he finished the manuscript, which was planned for a 1994 release. But the Henson family objected to his portrayal of Henson, and when Powers refused to make major changes, the book was cancelled. Eventually another biographer working with the blessing of the Henson estate, Brian Jay Jones, published ''Jim Henson: The Biography'' in 2013. Powers went on to co-write the original book of ''Film/FlagsOfOurFathers''.[[note]]An almost identical situation happened with David Michaelis and his biography of [[Franchise/{{Peanuts}} Charles Schulz]] in 2007, but the Schulz family apparently had no legal standing to stop publication, though they still were quite vocal about their disapproval of the book when it was released[[/note]]
* Madelyn Alt's ''Literature/BewitchingMysteries'' series had seven books released from 2006 to 2011. An eighth book, ''In Charm's Way'', was announced and given a pre-release date, but it was later de-listed. On top of that, Alt hasn't been heard from since sometime in 2012, leaving the series' fate up in the air.

[[/folder]]

[[folder:Pinball]]
* In a milder example than most, development of Creator/SternPinball's ''Pinball/{{Shrek}}'' was delayed -- and the costs raised -- due to demands and red tape from Music/SmashMouth as well as the films' actors.
* Creator/JohnPopadiuk has been accused of letting his pinball machines in the 2010's languish in development hell. This came to the forefront in late 2014 when he showed two empty cabinets of the machines he had been working on during Pinball Expo 2013, then showed up with the same two empty cabinets for Pinball Expo 2014 while other producers had since been created ''and'' produced playable prototypes. Whether or not this is actually the case is uncertain -- Popadiuk is incredibly secretive and prefers to reveal as little information as he can, which can give the impression that progress is slow -- but the fact remains that both ''Pinball/MagicGirl'' and ''Retro Atomic Zombie Adventureland'' have had at least 3 years in development when most other industry professionals spend no more than one.
** A development blog and preview site for ''Pinball/MagicGirl'' were finally revealed in February 2015, providing numerous images of the game's backbox and playfield art, audio and video clips, and other game elements. While a release date has still not been announced, it shows that some progress has been made.
* ''Pinball/{{Alien|2017}}'' was revealed at the 2014 Pinball Expo, slated for release in April 2015. (Creator/DennisNordman [[http://www.pinballnews.com/news/nordmanheighway.html left]] Creator/HeighwayPinball in part because he felt it would be impossible to complete the game in such a short span of time.) The game was delayed several times afterward, with subsequent release windows later in 2015 and 2016 also falling through, before it ultimately begin shipping in 2017.[[note]]Officially, [[https://pinside.com/pinball/forum/topic/alien-pinball-official-game-thread/page/219#post-3599069 the first game went out in February]], though [[https://www.thisweekinpinball.com/twip-the-fall-of-heighway-pinball-new-info-on-elvira-3-iron-maiden-le-more This Week in Pinball's postmortem on Heighway]] claims that ''Alien'' began arriving in customers' homes that July.[[/note]] By most accounts, the reason for this was that the game had a TroubledProduction (including issues with design and manufacturing, licensing woes, and alleged mismanagement from Andrew Heighway).
[[/folder]]

[[folder:Professional Wrestling]]
* The matches for the first season of Wrestling/{{Wrestlicious}} were filmed in 2008 but did not air until ''2010''. In 2011, Viacom sent a letter of intent to pick up a second season, whose matches were done before the year was up but never did get around to airing.
[[/folder]]

[[folder:Puppet Shows]]
* The Jim Henson Company has been planning a ''Series/FraggleRock'' movie and ''Film/TheDarkCrystal'' sequel for quite some time. Every now and then, they'll announce ''The Dark Crystal'' sequel, but no progress appears to have been made. This was parodied by ''WesternAnimation/RobotChicken'', which joked that the primary reason it's not going forward is that today's kids don't want to watch an all-puppet film. As well, many fans are skeptical as to whether there needs to be a sequel when the original's ending leaves no plausible room for one. Frank Oz, who has not been asked to participate in the production, had only one thing to say about the proposed sequel: "Why?". In early 2012, the film was shelved indefinitely due to 'budgetary concerns'; instead TJHC has moved on to producing a fan-written prequel novel as part of a contest, the graphic novel sequel ''The Power of the Dark Crystal'' (its title being the one floated for a film), and most prominently the Netflix prequel series ''Series/TheDarkCrystalAgeOfResistance'' in 2019.
* The idea for a [[Franchise/TheMuppets Muppet]] movie known as ''[[http://muppet.wikia.com/wiki/The_Cheapest_Muppet_Movie_Ever_Made! The Cheapest Muppet Movie Ever Made]]'' was originally floated in 1985. It's presumably about Gonzo directing a Muppet movie and he blows half the budget on the opening titles, resulting in the movie progressively getting shittier and shittier to the point where a shot of the same street corner is used for every city in the world. The title card was revealed in September 2009, but it was subsequently set aside in favor of ''Film/TheMuppets''.
* Then there's talks about a third ''Series/SesameStreet'' movie, which tapped Shawn Levy to produce.
[[/folder]]

[[folder:Radio]]
* The ''Radio/{{Star Wars Radio Drama|s}}'' adaptation of ''Film/ReturnOfTheJedi'' ended up shelved for a decade due to UsefulNotes/RonaldReagan's cuts to Creator/{{NPR}}'s federal funding.
* In 1976, Creator/TomBaker cowrote and attempted to produce a ''Series/DoctorWho'' movie, ''Doctor Who Meets Scratchman'', that got caught up in Development Hell due to the implosion of the British film industry in the 1970s recession. ''AudioPlay/BigFinishDoctorWho'' has expressed interest in doing it as an audio drama, but according to Baker it's unlikely it will ever go ahead due to copyright issues between the intended producer of the film version.
[[/folder]]

[[folder:Sports]]
* The Grand Prix of America is a UsefulNotes/FormulaOne street race in New Jersey. Or it would be, if they could actually get the permanent parts of the course built. It was first announced in 2011 for a spot on the 2013 [=F1=] schedule, only to be pushed back to 2014 after the clearances weren't secured in time. Then it missed the 2014 date due to financial difficulties. In late 2013, [=F1=] boss Bernie Ecclestone publicly claimed the race's backers are in breach of contract due to the repeated delays, and that the slot is now open to any group who can put together enough money to finish the course. The backers have since slammed Ecclestone and claimed he's deliberately trying to sabotage their efforts. As of July 2014, Ecclestone has indicated that, regardless of who finishes the course, the earliest it could be added is 2016 due to an agreement with some of the bigger teams not to exceed 20 races in a season, and even then he doubted anyone could get it done by that date. Come late 2015, and the final [=F1=] calendar for 2016 did not feature the Grand Prix of America despite actually expanding to 21 races.[[note]]the German Grand Prix and Grand Prix of Europe (now in Azerbaijan) were both revived for the season, with only the Korean GP leaving the schedule[[/note]] As of January 2016, it's unclear whether anyone is still seriously working on it.
** Subverted with the revival of the United States Grand Prix, which was almost canceled due to a brief contract dispute between Ecclestone and the builders of the Circuit of the Americas, but ultimately went off on its originally scheduled date at the end of the 2012 season.
* Miami for UsefulNotes/MajorLeagueSoccer has been plagued for over two decades in "Expansion Hell". The first team, Miami Fusion FC, could not negotiate a stadium deal to use either the Orange Bowl in the city proper, or the venue at Dolphins/Hard Rock Stadium, but instead played at tiny Lockhart Stadium in northern Fort Lauderdale for the team's 1998-2001 existence. Once MLS began its re-expansion phase in 2005, a team actually in the city of Miami looked promising. Marcelo Claure, CEO of Sprint, and FC Barcelona put a joint venture together in 2008 that was turned down by the league in 2009. MLS Commissioner Dan Gelber promised Miami a team if an MLS-Only Stadium could be secured in Miami. David Beckham, in return for joining the LA Galaxy, was given the right to form an expansion team (referred to as Team 20) with only a $25 Million entry fee anywhere without a team in the US. Team 20 was likely to join the league in 2012 along with the Montreal Impact. Beckman had the rights to Miami and could join once a stadium deal was secured. However, the city of Miami rejected two waterfront proposals plus another near the site of the old Orange Bowl; the University of Miami rejected a joint MLS/[[UsefulNotes/CollegiateAmericanFootball college football]] stadium; and a lawsuit by property owners in the Overtown district of Miami (where the City granted building rights) caused various stadium and team co-owners to leave his group. Since the tentative agreement in 2012, MLS expanded into New York City, Orlando, Atlanta, Minnesota, left (and later returned to) LA, with Nashville possibly taking the field before them in 2020. After a local judge dismissed the Overtown lawsuit, MLS Miami was officially awarded a team on January 29, 2018 for play "In the Future", with the team officially known as Club Fútbol Internacional de Miami, or Inter Miami CF. Since the official announcement, the Overtown location has been scrapped and FC Cincinnati was promoted to MLS for play in 2019. On November 6, 2018, the voters of the City of Miami finally approved a stadium at Freedom Park, near Miami International Airport, with Inter Miami scheduled to play its first MLS game in early 2020. However, on March 19, 2019, after lawsuits and other delays, have pushed the team to negotiate a deal with... Lockhart Stadium until at least 2022. The field is over 52 miles away (2 hours away with drive-time traffic). On August 19, 2019, Freedom Park had ''too much toxic material, including lead'' and some Miami Commissioner want the team to pay for the cleanup as part of their lease. It is very likely Miami never actually hosts the team.
* Another MLS stadium that just can't seem to get approved is the one for New York City F.C., [[https://en.wikipedia.org/wiki/New_York_City_FC_stadium which had many proposals that didn't pan out]] - most damningly, the region's other team with recurring new venue problems, the New York Islanders, managed to get a new arena approved before NYC FC got their stadium!
* Major League Baseball hasn't held an expansion draft since 1997 and hasn't had an expansion since 1998 for unknown reasons. So any plans for Portland getting a [=MLB=] team and Montreal getting a return of the Expos are, like with Miami's [=MLS=] team, also in Expansion Hell for now.
* The Brooklyn Dodgers spent much of its last decade trying to either acquire major renovations of Ebbets Field or to construct their own, new, Stadium in Brooklyn. The City of New York, lead by Construction Commissioner Robert Moses, insisted that ''The Brooklyn Dodgers should accept a move to Queens''. The City blocked an eminent domain request for a small piece of land because of Moses's desire for the Stadium in Queens. After secret discussions with the City of Los Angeles, and a secret ally in the [[Main/RivalsTeamUp New York Baseball Giants]], both teams abandoned NYC for California. Eventually Moses would get his Queens Stadium (Shea Stadium) 7 years after the move for the new New York Mets.
* A team called the Atlantic Schooners, based in Nova Scotia, was approved to join the UsefulNotes/CanadianFootballLeague starting in the 1984 season, but it was contingent on meeting certain goals, including the financing and construction of a 30,000-seat stadium. The ownership group wrestled with various government entities, who refused to provide any government funding for the stadium. With no stadium plan in place when they reached a league deadline for it in 1983, the application was withdrawn. The Atlantic Schooners name has been revived for other CFL expansion efforts, including one currently in the tentative planning stages.
* A planned new Quebec City team for the NHL has been in Expansion Hell since the early 2010s. Doesn't help that in 2018 commissioner Gary Bettman tacitly rejected the Quebec City bid (or to some, was {{Troll}}ing those who wanted a return of the Quebec Nordiques) by stating the league "would not expand any further for the foreseeable future".
* Basketball fans of Seattle have been in Expansion Hell for more than a decade, as the league doesn't want to expand and allow the Supersonics to return - at most, there were threats to relocate both the Sacramento Kings and the Milwaukee Bucks there.
* There have been proposals for an European Super League, bringing together all of [[UsefulNotes/EuroFooty European football's]] most storied franchises, since the 1990s. Proposals in 1998, 2009, and 2016 never came to fruition. The closest that the Super League has come to kickoff was a formal announcement in 2021 from clubs in England, Italy, and Spain. That announcement was met with backlash from fans, media, and national governments; FIFA and UEFA also warned that the Super League's players could be banned from international competition. Less than 48 hours after its announcement, all the English teams pulled out of the Super League, effectively making the 2021 proposal dead. And with the British government and UsefulNotes/EnglishPremierLeague looking into penalties for teams that took part; the concept of the Super League is in increasing jeopardy.
* Tasmania has been considered for an [[UsefulNotes/AustralianRulesFootball Australian Football League]] team since at least 1990, only to find itself left out in each of the league's expansions since then, in favor of second teams in cities already served by the league (Adelaide, Perth) and teams in areas where UsefulNotes/RugbyLeague is more popular than Aussie Rules (Sydney, Queensland). This has left Tasmania as the only Australian state without an AFL team. Currently, two of the league's Melbourne-based teams (Hawthorn, North Melbourne) play a few home games on the island every year, with the Tasmanian government paying some of the expenses, but the state has basically told the league that they'll cancel this arrangement if Tasmania isn't awarded a full-time team, and the league is scheduled to vote on it in August of 2022. There has also been talk of North Melbourne or Hawthorn just permanently relocating to Tasmania. The Northern Territory has also been involved in expansion talk, but is considered more of a longshot due to its sparse population and lack of facilities.[[note]]In a similar arrangement to Tasmania, the Melbourne-based Melbourne Demons and Western Bulldogs play a home game in Alice Springs and Darwin, respectively, every year. The Australian Capital Territory also lacks an AFL team, but the league has basically assigned it to Greater Western Sydney, who play some home games in Canberra.[[/note]] Expansion outside Australia is also on the backburner, with New Zealand often mentioned as a possibility, and there was even a short-lived discussion about launching an AFL team based in the US in TheEighties (the Los Angeles Crocodiles).
* Nevada State College, located in the UsefulNotes/LasVegas suburb of Henderson, opened in 2002, giving the state a third public four-year college (besides the University of Nevada in Reno and its Las Vegas campus, UNLV). The addition of varsity athletics on the NCAA level is part of the school's master plan; they've even selected school colors (black and gold) and a nickname (Scorpions). But the school has long struggled with its enrollment (it currently only has around 5,000 students), and the entire state has had higher education budget problems, so NSC sports has been limited to a few club teams competing in the Vegas area.
[[/folder]]

[[folder:Tabletop Games]]
* ''TabletopGame/Warhammer40000:'' Since updates to rulebooks and models for different armies are largely based on player demand, and player demand is in turn based on the availability of up to date rulebooks and models, some teams spend years in development hell. This was exemplified by the Dark Eldar who went ''over a decade'' without an updated codex while the much more popular Space Marines received seven. They were mercifully SavedFromDevelopmentHell with an excellent new codex and model range, but others [[DemotedToExtra haven't fared so well]].\\\
Games Workshop started work on updating older books, which thankfully will see a resurgence of the forgotten armies. However the Sisters of Battle are notable in that while they're not as old as the Dark Eldar, they might very well have to wait quite a bit longer given that they're getting a Magazine Codex (which usually means development on them has halted and they're just getting lip service in the meantime). Even more notable is that the army is so old, they're the only ones who still require you to use metal models for the entire army (every army, even the Necrons and Dark Eldar, had plastics for troops. Sisters are not so lucky).
** With the release of the Necrons during the Halloween of 2011, the Sisters of Battle is now literally the oldest range, having not received a new model in the longest time.
** In-universe, this is also currently happening with Abbadon the Despoiler's 14th Black Crusade. It's been in limbo for ages because Abbadon has his heart set on getting all the surviving Traitor Primarchs to participate. Considering how much they all hate each other, it's unlikely to happen any time soon.
** As of July 2015, there is ''still'' no update for the Sisters of Battle, as in no new models, no new hardcover codex etc etc. Some rumours were made about a fully new range of miniatures but even these disappeared quickly after.
** A new range of plastic Sororitas and a Codex was released in June 2021. This was preceded some time before by a special collectors box of plastic Sororitas.
* Creator/GaryGygax had always wanted to release a version of his iconic "Castle Greyhawk", the location that pretty much launched ''TabletopGame/DungeonsAndDragons'' while at TSR. Due to his busy schedule as the head of TSR, and his writing duties on a myriad of other modules, he never was able to complete or even start the module. (His being sent to Los Angeles to develop the ''D&D'' cartoon series didn't help either). In 1982, the module had been advertised in Dragon Magazine, but as of 1986, when Gygax left the company due to "CreativeDifferences", no module had been published. In '87, TSR did a wild and mostly unfunny parody version of the Castle that bore no resemblance to Gygax's design. It was seen by many gamers as little more than a parting shot against Gygax, and the module has been pretty solidly rejected by players and [[CanonDisContinuity pretty much disowned]] by TSR and Creator/WizardsOfTheCoast, leading to a second try at the module which was much more warmly received.
** Still, that wasn't Gygax's castle, one that wouldn't see print until 2008, when "[[LawyerFriendlyCameo Castle Zagyg]]" was published by Troll Lord Games. Sadly that one went straight back into development hell after Gary [[DiedDuringProduction died shortly after the first installment was released]] and the deal Troll Lord Games had with Gygax fell apart when his wife took control of the company. Nobody's sure what exactly happened, all people know is that in 2008, Gygax Games was going to find a way to publish the rest of the castle.
* [[http://philmasters.blogspot.co.uk/2013/08/expand-contract-39.html This blog post]] describes the 17-20 years of development hell experienced by one ''Literature/{{Champions}}'' book.
* "d20 Spectaculars" was a SuperHero add-on to ''TabletopGame/{{d20 Modern}}'' that was supposed to be published by Wizards of the Coast in 2006, but it never materialized - possibly because ''TabletopGame/MutantsAndMasterminds'' already had rules for d20 supers and did it very well, possibly because that's when they started work on 4th edition.
* ''TabletopGame/MutantsAndMasterminds'' itself had a low-key version of this with the initial release of the 3E system as the DC Comics themed ''DC Adventures''. According to some of the writers on the project, the initial system was completed, and characters built, almost a year before the release, during which time Green Ronin went back and forth with DC Comics about which "iconic" version of the character to build (particularly since DC was moving towards the NU52 continuity) as well as a lot of squabbles among DC writers about the Power Level of their favored characters on a relative and absolute level.
* ''TabletopGame/DungeonsAndDragons 4th edition'' was supposed to be released alongside a series of software tools. The most notable was a "virtual game table" allowing people to play live D&D online, complete with 3D models of characters and monsters. The virtual tabletop was postponed and the game came out in 2008 without any of the promised tools. The subscription-based Dungeons & Dragons Insider service did eventually provide some of them, such as the Character Builder, Monster Generator, and Rules Compendium (with less functionality than originally promised in some cases), but several others including the tabletop were still nowhere to be seen. The virtual tabletop eventually went into beta testing, but lacked the promised 3D models or the (absolutely crucial) ability to use one's own maps, and was officially cancelled in mid-2012. Later that year (on the most generous reckoning), 4th Edition was basically abandoned in favor of developing a new edition. By then there were several free virtual tabletop programs available online, though none had all the features of the version [=WotC=] had planned.
* ''TabletopGame/{{Exalted}}'' Third Edition began development in 2011, was announced in 2012, had a very successful Kickstarter in 2013, and the corebook finally saw release in early ''2016''. The TroubledProduction included such elements as having to pull off massive rewrites, the departure of one writing staff member due to creative differences, and one of the developers coming down with some messy medical issues.
* Creator/SteveJacksonGames is perpetually prone to this trope, because Steve Jackson is a perfectionist who tries to be involved in everything his company does. After all, everything they ship literally has his name on it.
** ''TabletopGame/{{GURPS}}: Webcomic/GirlGenius'' seems to be in perpetual limbo, possibly due to an edition change since the Foglios wrote most of the content, perhaps because the Foglios have lots of other, probably more profitable work in hand. Other GURPS examples might include:
** ''GURPS Literature/TheDifferenceEngine'' - announced in October 1991 for 1992 publication. The problem was said to involve the original assigned writer suffering [[DiedDuringProduction a fatal accident]], and the license will long since have expired, so this one can be considered defunct.
** Similarly, ''GURPS [[Literature/TheTalesOfAlvinMaker Alvin Maker]]'' - announced 1992 for 1993 release, and apparently to have been written by Creator/OrsonScottCard himself. (It's possible that this one is simply waiting for him to finish writing the actual series...) Again, the license agreement will have expired.
** The third edition did have a ''GURPS Middle Ages I'' (which dealt with Britain), and there was supposed to have been a ''Middle Ages II'' (for the continent) which never materialized. However, there's no evidence of that even having been started; sales on volume I may simply have been too disappointing for the project to continue.
** ''GURPS Thaumatology'' did eventually appear after only a moderate delay. However, the excuses for that apparently included both the author and the editor experiencing some fairly bizarre (unrelated) health issues, and the publisher being mugged. As the book was about exotic magic systems, there was some joking discussion of a possible curse.
** The entire line, including several partly-completed books, suffered significant delays in 2012-3, along with some other projects from Steve Jackson Games. This was mostly because the company had decided to use Kickstarter to fund a relaunch of their classic board game ''Ogre'', which had proved so spectacularly successful that delivering on the promises made devoured most of the company's time and resources.
** The ''{{TabletopGame/OGRE}}'' Kickstarter, meanwhile, shipped a year after the initial estimates.
** ''GURPS Literature/VorkosiganSaga'' took so long to get out that it was only up for sale for about a year before the license expired.
** ''TabletopGame/InNomine'' ran so far behind that one year, the staff went to [=GenCon=] wearing [[http://www.sjgames.com/ill/oldgifs/gencon-derek.html shirts reading "For God's sake...do NOT ask about IN NOMINE"]] with a [=FAQ=] on the back.
* ''Capcom World Tournament'' was delayed for a while, then put on hiatus, due to issues with Living Room Games being unable to guarantee a profit through traditional distribution and being unable to risk alienating retailers with distribution methods that would be more likely to turn a profit, like electronic-only format or Publish On Demand. It's still not officially "canceled", despite their decision allowing the license to lapse and their not being able to release it now if they wanted to. This particular bit of vaporware essentially killed the company, too.
** There was some talk of releasing it with the Capcom elements removed, but Living Room Games folded due to the financial loss incurred by not actually releasing the game before this could happen. Many RPG fans are disappointed, as by all accounts, it was one of the best and most novel applications of the d20 system ever.
* ''TabletopGame/{{Mekton}}'' is pretty much the (barely-) living definition of Development Hell for Tabletop {{RPG}}s. Plans for a new edition, using Creator/RTalsorianGames' then-new Fuzion system, were announced in the late 1990s. This version, ''Mekton Double Zeta'', stalled very quickly, and very little was heard from it. RTG then sold Mekton to Atomic Rocket Games with the intent of either producing a new edition or alternatively putting Mekton Zeta back into production. Instead, ARG sat on the licence and did nothing with the IP before selling it back to RTG, while retaining a limited licence to produce supplements and Sourcebook material (As of 2010, they have only produced a few short PDF products). At some point after that, the Fuzion version was dropped with development of any new edition being effectively cancelled. In 2009, Mike Pondsmith, the game's original creator, returned to the company and announced a new version, ''Mekton ZERO'', was in development; however, as yet, no details of the new edition have emerged and there has been no activity from RTG beyond random posts on the Mekton mailing list from Pondsmith, and even those have ceased.
** A Kickstarter campaign for Mekton Zero has since come and gone. Nothing has been heard since.
** In the 1990s, RTG licenced Mekton to a Japanese company to produce a ''Franchise/{{Gundam}}'' RPG. In about 2000, RTG then licenced this RPG with the intent of eleasing an English translation in the West. Since then, there has been no news on the progress of the translation, despite being 'in progress' for nearly a decade.
** Mekton Zeta itself was subjected to a lot of development hell. The first sourcebook for the edition was out over a year before the rulebook was released. The mecha in it were constructed with a hybrid of Mekton II and Zeta rules and contained a number of substantial differences to the construction rules from either. By the time that Zeta was released, the rules had been further revised, leaving the book effectively obsolete and unsupported.
* Airfix Models, one of the first companies releasing plastic model construction kits and scale military miniatures, realised in the middle-to-late [[TheSeventies 1970s]] that its product range was becoming hopelessly outclassed and surpassed by newer-established competitors with better designers and newer equipment. The company set about redesigning and revamping its [[TheFifties 1950s]] and [[TheSixties 1960s]]-tooled kits and figures, earning critical acclaim for some of the brand-new designs. Then it went bust. The history of Airfix for the next nearly thirty years was one of its best lines being cherry-picked by rivals, or else owners intent on milking the tired old models for whatever profit they generated. It was only in the 2010's, under good management prepared to invest, that the company was able to resume its programme of retiring the worst and most indifferent older models and introducing retools. Modellers and table-top wargamers alike have been very enthusiastic concerning the new models. But now Hornby, the new owners, are in financial trouble...
[[/folder]]

[[folder:Theater]]
* Richard O'Brien has, for years, planned on making a sequel to ''[[Film/TheRockyHorrorPictureShow The Rocky Horror Show]]''. So far, however, nothing beyond a few rumors and some scrapped script ideas. All that's known about the yet-to-be-made sequel is that it would've involved Frank N Furter coming back to life.
** Ditto for its film version, which was originally going to be followed up with a straight sequel, titled ''Rocky Horror Shows His Heels''. Numerous factors, including the unavailability of certain cast members and a reportedly ''incredibly'' lackluster script, ultimately led to its transformation into the 1981 box-office flop ''Film/ShockTreatment'', touted by O'Brien as "not a prequel, not a sequel, but an equal". Though it uses characters and setting from the first film, it's more of a SpiritualSuccessor than a sequel. O'Brien tried his hand at writing another straight sequel to the ''Picture Show'', resulting in ''Revenge of the Old Queen'', which was leaked onto the Internet and began making the rounds in the late '90s, though it reads more like a glorified FanFic.
** Eventually O'Brien announced that he had finally begun writing the playbook for a sequel to the stageshow, entitled ''Rocky Horror: The Second Coming'' but attempts to fund a production fell through and the project has not moved forward since the mid-2000s.
* The severe postponing of the Belgian production of ''Theatre/TanzDerVampire''. This may be due to the severe fiasco that was ''Dance of the Vampires'', the disastrous Broadway adaptation. (In short: The producer had it rewritten into a spoofy comedy, thinking that would play better to Americans, and then allowed lead actor Michael Crawford more control over the show than songwriter Jim Steinman.)
* Jim Steinman tried to get a ''Bat Out of Hell'' musical off the ground pretty much from the moment the album was released, even stating in interviews it was a concept album that he imagined being adapted to the stage. But after the complete mess that was ''Dance of the Vampires'', Steinman was all but blackballed from Broadway. He faced yet another setback in 2006 when Meat Loaf successfully sued for the rights to the title. Eventually a musical was produced in [[https://en.m.wikipedia.org/wiki/Bat_Out_of_Hell:_The_Musical 2017]]
** ''Bat Out of Hell'' was intended to be the music for a Rock Opera that never happened. At some point, Meatloaf must have decided to release it without the stage show because it was a lot of work to not get published.
** Also Jim Steinman wrote music for a proposed [[https://www.youtube.com/watch?v=3Pr_dqIwobM Batman musical]].
* ''Vanities: The Musical'' was planned to be staged on Broadway at the Lyceum Theatre in 2009, but due to the recession, this was "postponed indefinitely", and thus its New York debut was relegated to a short run at the off-Broadway Second Stage Theatre.
* The Broadway version of ''Theatre/LoveNeverDies'' was set to open Fall 2010, but it was pushed back first to Spring 2011 and then indefinitely. Andrew Lloyd Webber still wants to get it to New York, but so far has had no success. This for a show that he first started working on in ''1990''.
* ''Heart and Lights'', a Rockettes vehicle that was supposed to be an annual springtime attraction for Radio City Music Hall, cancelled its premiere engagement just days before opening night in March 2014, citing script issues. A new director and choreographer were hired, and it ran in Spring 2015 and '16 as ''The New York Spring Spectacular''.
* In 2012, the Broadway production of the hit Austrian musical ''Rebecca'' actually got as far as the sets going up before it turned out that [[TroubledProduction the key investor didn't exist -- it was all an elaborate scam]].
* A musical adaptation of ''Film/TheFirstWivesClub'' had a limited engagement in San Diego in 2009 that was hyped as the pre-Broadway tryout, but after it closed it lost its director and saw no other productions for years afterward. A {{Retool}}ed version with a new director, book writer, and choreographer opened in Chicago in 2015, but did so poorly that Broadway plans died with it.
* A musical adaptation of ''Literature/FightClub'' was announced in 2004 with a creative team consisting of original author Creator/ChuckPalahniuk, Creator/DavidFincher (who directed the [[Film/FightClub film adaptation]]), and [[Music/NineInchNails Trent Reznor]], set to be staged for the book's tenth anniversary in 2006. That date passed with no musical to show for it, and despite director Julie Taymor joining the team in 2015 and Reznor saying it was still being worked on during a 2017 Q&A, Fincher stated in a 2021 [[https://www.theguardian.com/film/2021/mar/25/david-fincher-and-trent-reznor-on-mank-people-were-like-huh-this-is-very-niche interview with The Guardian]] that “Its time may have passed".
[[/folder]]

[[folder:Theme Parks]]
* [[https://en.wikipedia.org/wiki/Dubailand Dubailand]] as a whole.
* [[Ride/DisneyThemeParks EPCOT]] has had plans to add more countries to the World Showcase for decades now. Among plans include a Mt. Fuji themed roller coaster in the Japan area, which eventually led to ''Expedition Everest'' at the Animal Kingdom.
* The "Flying Turns," a modern replica of a wooden roller coaster popular in the 1930s, has been under construction at Knoebels Amusement Resort in Elysburg, Pennsylvania since 2006. The main engineering problem appears to be recreating a 1930s ride that can also meet 21st century safety standards.
** Ah, ''Flying Turns''. By now a punchline among coaster fans. With the countless of times the trains have been rebuilt, track has been reconfigured and all the testing that ultimately went nowhere, Knoebels has continually added new rides to hold the public over year after year. It finally opened on October 5th, 2013.
* ''Decades'', the Rock'N'Roll theme park in Arizona, which got approval to be built by the state government but never saw the light of day mostly due to money problems and probably because they could not get licensing and permission from the artists themselves. Looking at [[http://www.rushisaband.com/images/200906/1180.f.jpg these proposed plans]] will give you an idea.
* [[Ride/UniversalStudios Universal Studios Florida]] was a project that Universal had been trying to get done throughout the entirety of the '80s, but due to a variety of circumstances, including quarrels with Disney, the park wouldn't open until 1990.
* Plans for Universal Studios Japan went all the way back to the ''late '80s'', but for reasons unknown, it took the park until 2001 to finally materialize.
* The third theme park in Universal Orlando Resort. It was first thought of during the expansion of the resort in 1998, and they even bought the land to build the park. But the economic fallout of the September 11th attacks along with the initial financial failure of Islands of Adventure made the project less viable and the land was sold off a few years later. Eventually, with the success of the ''Harry Potter'' rides and the purchase of [=NBCUniversal=] by Comcast, the land was bought back by the end of 2015 for $130 million, leading to many, including local news outlets, to speculate that the third theme park[[note]]Or fourth, if you count Volcano Bay[[/note]] will finally be coming within the next few years. These speculations were confirmed in 2019 when the third park was finally announced as Universal's Epic Universe.
* Universal Orlando had been trying to develop its own water park throughout the '2000s (They had bought the already existing Wet N' Wild in 1998), but like the idea of a third theme park, it was put on hold due to the financial issues they were facing at the time. The water park finally came to be in 2017, under the name Volcano Bay.
* ''The High In The Sky Seuss Trolley Train Ride!'' did not open until seven years after the rest of Islands of Adventure opened, despite the fact that the track, loading station, and queue line had been at the park since opening day. This is because the ride was built improperly by its original manufacturer, leading to Universal delaying its opening until they could get the money to hire a new manufacturer to properly redo the attraction, something that wouldn't happen until the mid '2000s.
* In June 2015, Universal filed a patent for an "interactive game floor system", with drawings hinting that a real-life, interactive ''VideoGame/PacMan'' ride was in the works. The project is now most likely stalled due to development on Super Creator/{{Nintendo}} World, suggesting that Universal likely had this idea as a backup plan in case they were unable to secure the theme park rights to Nintendo franchises.
* Two Universal parks in both South Korea and Russia were announced years ago yet neither have begun construction since their announcement.
[[/folder]]

[[folder:Toys]]
* Hot Toys is infamous for showing off prototypes of characters from their various licenses, only to never formally produce them for retail. Examples include:
** Comicbook/ProfessorX from ''Film/XMenFirstClass''.
** The Rhino from ''Film/TheAmazingSpiderMan2''.
** Yellowjacket from ''Film/AntMan''.
** The Batmobile from the 60s ''Series/{{Batman}}'' show.
** Mantis from ''Film/GuardiansOfTheGalaxyVol2''.
** The titular protagonist of ''Film/{{Shazam}}''.
* ''[[http://robobuz.de/preorder.php Robobuz]]'' was a toy, basically an [[Franchise/{{Transformers}} Autobot bus]] [[SerialNumbersFiledOff with the symbol removed]], that had its release continually delayed because the manufacturing partner didn't have any openings (reportedly the toy would start being manufactured after the factory's main business slowed down, which it never did).
* ''Marvel Legends'':
** Each figure in the Mojo wave was originally supposed to include a member of the X-Babies (child clones of various Marvel heroes created by Mojo). 1st Appearance Comicbook/{{Daredevil}} was supposed to come with Wolvie and Shadow Kitty (Comicbook/{{Wolverine}} and Comicbook/KittyPryde), [[Characters/XMenMojoverse Longshot]] with Shower (Comicbook/{{Storm|MarvelComics}}), Baron Zemo with Colossusus (Comicbook/{{Colossus}}), Comicbook/TheFalcon with Captain Amerikid (Comicbook/CaptainAmerica), Comicbook/{{Psylocke}} with Thunderstorm ([[Comicbook/TheMightyThor Thor]]) and Comicbook/LukeCage with Creepy Crawler (Comicbook/{{Nightcrawler}}). Prototypes for child versions of Comicbook/IronMan and Comicbook/{{Hawkeye}} were also revealed. Rising production costs led to [=ToyBiz=] abandoning the X-Babies idea, and the Daredevil figure ended up being replaced with a 1st Appearance Iron Man.
** The Comicbook/{{Onslaught}} wave figures were each supposed to come packed with a henchman character, like a Skrull warrior, a Comicbook/{{HYDRA}} agent, an A.I.M. soldier, a Hellfire Club guard, a Hand ninja, a Doombot and a Brood drone. This plan was axed for the same reason as the X-Babies figures, and the Crimson Dynamo figure from the wave was also dropped. However, the Brood and Skrull figures were later [[SavedFromDevelopmentHell rescued by Diamond Select for the company's Marvel Select line]] and the Hydra agent, A.I.M Soldier, Hellfire Club Guard and Hand Ninja have all gotten figures as well as of 2021.
** Similarly, there were plans for Forbush Man and Frog Thor to appear somewhere as bonus figures, but these too were cancelled.
** When Creator/{{Hasbro}} first took over the license, there were plans for a stopgap wave made up of repainted ''Marvel Legends'' and ''X-Men Classics'' figures from [=ToyBiz=]. The line was scheduled to include Wolverine, the ''Comicbook/MutantX'' version of Comicbook/{{Iceman}}, and the [[Comicbook/UltimateMarvel Ultimate]] versions of Comicbook/{{Cyclops|MarvelComics}}, Comicbook/{{Magneto}} and Captain America. While photos of the figures made their way online, the toys themselves were never released.
** In 2007, Creator/{{Hasbro}} ran a special fan poll that included prototypes of 1st Appearance Storm, Magneto, Gambit in his Muir Island uniform, Northstar, Aurora, Silver Samurai, Sunfire and Lilandra. Sunfire won the poll and was eventually released, with Northstar & Aurora [[note]] As part of an Amazon exclusive boxed set with other members of ''ComicBook/AlphaFlight''. [[/note]], Silver Samurai [[note]] As a "vintage" figure. [[/note]], & 1st Appearance Storm [[note]] As part of a Target exclusive two-pack based on ''Giant-Sized X-Men #1,'' alongside Thunderbird. [[/note]] all following, but still no Lilandra or Muir Island Gambit as of 2021.
** The Fin Fang Foom wave was supposed to include Bi-Beast and the Red King, but both were bumped for unknown reasons.
** Hasbro held another fan poll in 2009, this time showing Comicbook/{{Deadpool}}, Multiple Man, Comicbook/BlackWidow, Brother Voodoo, [[Comicbook/SpiderMan the Bombastic Bag-Man]], Classic Comicbook/MsMarvel, Modern Havok, the Hood, Lady Bullseye, Ed [=McGuinness=] [[Comicbook/TheIncredibleHulk Hulk]], Nuke and Terror, Inc. As of 2021, Deadpool, Black Widow, Hulk, Brother Voodoo, Multiple Man, Nuke, & the Hood have all been released in some capacity, but not the others.
** Comicbook/{{Blade}} and [[Comicbook/NewMutants Dani Moonstar]] were supposed to appear in the Epic Heroes wave, but were bumped, although Dani was released in 2019 as a Walgreens exclusive figure.
** The Phoenix 5 version of Cyclops was meant to show up in the Puck wave, but ended up being canceled by Hasbro due to the costume supposedly being too flash in the pan.
* Speaking of Hasbro, a prototype Fin Fang Foom toy for their ''Marvel Universe'' line was shown off at a convention, but ended up being cancelled due to the poor sales of their Comicbook/{{Galactus}} and Sentinel figures.
* ''WesternAnimation/RainbowRangers'' was announced to have a Fisher-Price toyline that would show up in the fall of 2019. [[https://www.amazon.com/Fisher-Price-Rainbow-Rangers-Ranger-Banana/dp/B07MCFBJZC Some websites]] [[https://www.deepdiscount.com/rainbow-rangers-3in-figure-pack/887961774283 even listed]] preorders for the toys, but those never came to be. The fate of this toyline is currently unknown.
* From 2018-2019, Creator/{{Mattel}}'s ''[[Franchise/DCUniverse DC Multiverse]]'' line unveiled a number of new figures at conventions and in press images. While many of these were ultimately made, [[ComicBook/GreenLantern Simon Baz]], 90s ComicBook/{{Catwoman}}, Impulse, ''ComicBook/{{Flashpoint}}'' Comicbook/{{Aquaman}}, Mammoth, ''Anime/BatmanNinja'' [[ComicBook/TheJoker Joker]], classic [[ComicBook/TheRiddler Riddler]] and the ''ComicBook/DCRebirth'' versions of ComicBook/BlackCanary and Hawkgirl were all cancelled when Mattel lost the DC Multiverse license transferred to [[Creator/ToddMcFarlane McFarlane Toys]].
* ''Toys/{{Bionicle}}'''s planned post-2009 set line was scrapped after Toys/{{Lego}} decided to put the franchise on hiatus. Though some of the potential sets were only hinted at (including Element Lords, toys based on the planned 5th movie and bio-mechanical dinosaurs), only one model, the Baterra were revealed via appearances in comics. No actual physical model was ever shown off, so it's unknown how far they were in production. Instead, a line of small, low-budget commemorative sets were made for 2010 to cap off the franchise.
* ''Toys/{{Bionicle 2015}}'' was planned to last until at least 2017 but due to [[ExecutiveMeddling LEGO's change of plans]] it was CutShort mid-2016, within mere days after they teased multiple potential models of [[BigBad Makuta]] and the [[MaskOfPower Mask of]] [[MacGuffin Ultimate Power]]. A version of Makuta could be built by combining other sets (though LEGO refused to release official instructions), the Mask of Ultimate Power needed to complete it was never released, however there are various 3D printed fan-made approximations.
[[/folder]]

[[folder:Web Animation]]
* Any [[ObjectShows Object Show]] can fall into this territory. If it doesn't complete its first (or at least newest) season like ''WebAnimation/BattleForDreamIsland'' or ''WebAnimation/InanimateInsanity'' did, its next episode will fall flat, and eventually fade out of the black with no word on renewal, or else it could lead to it getting canceled altogether. Reasons can vary but it's usually due to the creator being unable to keep up with school/work and/or their own lack of interest. Luckily, [[SavedFromDevelopmentHell an object show can get revived by making a reboot after it's original failed]], but sometimes can [[SubvertedTrope fall flat afterwards]].
** BFDIA was never completed and only got cancelled after 6 episodes, even IDFB was canned after a single episode.
** ''[[https://www.youtube.com/watch?v=tPE0FMi4CQI Code Red]]'' is an upcoming object show that has been gaining massive popularity in the Object Show Community from its intro and teaser. The only problem is that it's been "upcoming" for the past ''four years'' without any updates let alone episodes due to the creator's combined demotivation and OldShame. In an [[https://www.youtube.com/watch?v=oC85N4ak2AQ OSC podcast]], he stated he would ''eventually'' release the episode but it's up to debate of [[OrphanedSeries whether he would continue the series or not]].
* ''Paradigm Spiral'' is an {{animesque}} web-cartoon, with a manga-style comic on the side. It's ''RWBY''-inspired to the point where it's caused controversy for plagiarism. ''Paradigm Spiral'' has been in development since 2015 with not much progress. Its first episode was still in-progress as of 2017, but the official Youtube channel has since removed all its videos.
[[/folder]]

[[folder:Webcomics]]
* The ''Webcomic/PrincessPi'' story "Princess Pi vs. Dr. 8" appears to have entered this. The list of ''Princess Pi'' villains released back in 2011 showed a drawing of Dr. 8, and described his gimmick as using mathematical calculations to determine the most effective evil schemes. Additionally, a post that cartoonist Peter Paltridge made on the Toon Zone forum compared his personality to that of Creator/CharlieSheen. Despite all these details, Peter never gave a release date for the story.[[note]]He didn't even officially confirm the title, "Princess Pi vs. Dr. 8", but the fact that it fits the IdiosyncraticEpisodeNaming makes it a likely guess.[[/note]] Considering how many other comics and articles he must make, it seems highly likely that he'll ''never'' release it.
* In ''Muertitos'', the equivalent of Hollywood is actually ''called'' Development Hell, in a ShoutOut to this. The story arc it appears in actually primarily parodies AdaptationDecay and DarthWiki/SoBadItsHorrible, however.
[[/folder]]

[[folder:Web Original]]
* One of the most infamous examples in the world of web originals is LetsPlay/ProtonJon's let's-play of ''VideoGame/Superman64''. The test video went up in December of 2007, with the trailer coming out a month later. The LP wouldn't properly start, however, until mid-2010, and updated once every few months for some time. However, after Stage 5, the playthrough started seeing the delays it would become infamous for, with Stage 6 being released nearly 9 months after Stage 5. After that, the next stage would be put off for nearly a year, and the one after coming out over '''three years later'''. Stage 9, the most recent episode as of this writing, came out roughly 7 months later. At this point, the LP is over a decade old and is just over ''halfway'' done. While Jon was already infamous for his erratic upload schedule since graduating from university, the numerous delays besetting the project (tech issues, personal problems, working on other solo projects, writer's block, [[TheLastOfTheseIsNotLikeTheOthers and the death of the seller of one of his capture cards]], among others) have become the butt of many jokes among fans. The exact timeline of the LP is as follows:
** December 1 2007 - Test video
** January 26, 2008 - Trailer
** June 17, ''2010'' - Stage 1, parts 1 and 2
** September 24, 2010 - Stage 2, parts 1 and 2
** October 13, 2010 - Stage 3, parts 1 and 2
** January 7, 2011 - Stage 4
** July 27, 2011 - Stage 5
** ''May 6, 2012'' - Stage 6, parts 1 and 2
** '''January 31, 2013''' - Stage 7
** '''''July 23, 2016''''' - Stage 8
** February 25, 2017 - Stage 9
** April 1, 2021 - Stage 10
* Parodied in this [[Website/TheOnion Onion]] article: [[http://www.theonion.com/articles/script-has-been-floating-around-hollywood-for-75-y,18172/ Script Has Been Floating Around Hollywood For 75 Years]]
* [[WebVideo/JacksFilms Jack Douglass]] teased a Website/YouTube version of "Choose Your Own Adventure" in 2008. Since then, he's gone on to create a number of successful projects, including "Your Grammar Sucks" and "[=JackAsk=]", but nothing more has been heard about [=CYOA=].
** ...That is until August 10, 2020 when [[https://www.youtube.com/watch?v=pg6RVbqhfK4 this video was finally released]]
* As part of their [[https://www.indiegogo.com/projects/channel-awesome-s-new-shows-and-more July-August 2013 Indiegogo fundraiser]], [[Website/ThatGuyWithTheGlasses Channel Awesome]] raised funds for three new shows: a pop culture game show called "Retro Pop Culture Challenge", a new comic book show, and a video game-based trivia show "The Gaming Gauntlet". As of December 2014 the pop culture show has apparently been filmed and is in post-production, but nothing has come of the other two shows.
** One of the shows, apparently now called ''Pop Quiz Hotshot'', has had a few pictures of the set for the show pop up over time, featuring other site contributors such as WebVideo/TheCinemaSnob and [[WebVideo/AtopTheFourthWall Linkara]], and even some test footage as well as an audition sign up page have popped up on the website. Very little of the show popped up since then, until March 31, 2015, [[http://channelawesome.com/pop-quiz-hotshot-pilot-episode/ when a pilot episode for the show was released.]]
* Go to the TropeLaunchPad and you likely see unfinished tropes that have been there for MONTHS. Which is why we have the Administrivia/TLPBump handy to keep developing {{trope}} concepts alive.
* An in-universe example: In ''WebAnimation/HomestarRunner'', ''Dangeresque 3: The Criminal Projective'', was in production for 4 1/2 years before [[SavedFromDevelopmentHell finally being released]] as episode 4 of ''VideoGame/StrongBadsCoolGameForAttractivePeople''.
** The site itself hadn't had new content since December of 2010 until the April Fool's Day special was released in 2014.
** Their games aren't free from it, either: the periodically updated ''Stinkoman 20X6'' had level 9 added in 2005, with a promise of the final level "coming soon". 15 years later, it was finally released in December 2020.
* "Pimp Lando X" from the ''WebAnimation/PimpLando'' series, which only has had a [[https://www.youtube.com/watch?v=PBCerExlkpQ teaser released]]...in 2008.
* ''Shot On Shitteo'', an [[StylisticSuck intentionally shlocky]] [[SlidingScaleOfComedyAndHorror comedy-horror]] anthology from Creator/BradJones was supposed to come out in 2014. [[ShapedLikeItself Shot on VHS tapes]], the stories featured a killer wheelchair, rapist squirrels and an [[ArsonMurderAndJaywalking irate filmmaker]]. Production began in 2013 and was supposed to be very fast. Unfortunately, a snow storm hit Springfield during filming forcing the shoot to be postponed and Brad later got too occupied with ''WebVideo/TheReviewers'' to continue. The biggest blow to the film came when Jake Norvell was fired from ''WebVideo/TheCinemaSnob'' site and as he played a huge role in the first story, all of the shot footage had to be discarded. Brad was toying with editing the existing footage into [[RealTrailerFakeMovie fake trailers]] with a new story but thought against it feeling as that approach would greatly hurt the film. Legal issues concerning Jake also got in the way. In the end, he simply pulled the plug only hinting that the footage will be mysteriously leaked. Brad has stated that the revenue obtained from the [[http://www.thecinemasnob.com/shot-on-shitteo-vlogs v-logs]] covered all the costs on the aborted project.
** However in late 2016, Brad revealed that all this time he ''could'' legally release the footage and filming resumed [[http://www.thecinemasnob.com/shot-on-shitteo-vlogs/shot-on-shitteo-vlog-day-8 in October]], albeit with [[TheOtherMarty a different actor]] filling in for the scenes Jake couldn't be in. Time will tell if the film gets SavedFromDevelopmentHell.
* A series of "webisodes" based on Creator/GarthEnnis' ''ComicBook/{{Crossed}}'' were announced in March 13, 2013. So far, no further news about the project are available.
* ''Website/SpecWorld'', an ambitious world-building project showing how evolution would have progressed differently if the dinosaurs hadn't gone extinct, has seemingly entered this. The site stopped updating in 2008, although some rumblings existed in its Yahoo! Groups page until that service was ended in December 2020.
* WebVideo/JonTron's review of ''VideoGame/TakeshisChallenge'' took ''2 years'' to finish, due almost entirely to how hellishly, [[GuideDangit confusingly]] difficult the game is.
* Creator/TeamFourStar has a poor track record of delivering on announced original content:
** In 2018, Team Four Star showed a short teaser for a wrestling-themed show filmed with action figures called AWF. They still occasionally mention it on social media when asked about future projects, but nothing more has been shown.
** In 2018, TFS premiered a pilot for an original 2D-animated series called "Fist Master." Although it was announced as a series, no followups have been revealed.
** The Season 3 finale of DBZA, released in 2018, ended with a teaser card promising a Season 4. Multiple update videos and social media updates throughout 2018 and 2019 made promises about the release window, with the timeline being pushed back every time. In October 2019 an off-hand reference was snuck into an update video that the team was considering making Season 4 with original 3D animation rather than the repurposed anime footage the series was known for. In January 2020, [=KaiserNeko=] made a Twitter post that noticeably said that ''[[ExactWords IF]]'' Season 4 was made, it would be done with 3D models. After being bombarded with questions by upset fans, the team finally admitted that Season 4 was cancelled in February of 2020.
[[/folder]]
----
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* ''Toys/{{Bionicle}}'''s planned post-2009 set line was scrapped after Toys/{{Lego}} decided to put the franchise on hiatus. Though some of the potential sets were only hinted at (including Element Lords, toys based on the planned 5th movie and bio-mechanical dinosaurs), only one model, the Baterra were revealed via appearances in comics. No actual physical model was ever shown off, so it's unknown how far they were in production. Instead, a line of small, low-budget commemorative sets were made for 2010 to cap off the franchise.
* ''Toys/{{Bionicle 2015}}'' was planned to last until at least 2017 but due to [[ExecutiveMeddling LEGO's change of plans]] it was CutShort mid-2016, within mere days after they teased multiple potential models of [[BigBad Makuta]] and the [[MaskOfPower Mask of]] [[MacGuffin Ultimate Power]]. A version of Makuta could be built by combining other sets (though LEGO refused to release official instructions), the Mask of Ultimate Power needed to complete it was never released, however there are various 3D printed fan-made approximations.
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Wiki/TheOtherWiki has [[https://en.wikipedia.org/wiki/Development_hell an entry]] about Development Hell, with a list of films that are either in Development Hell or once were.

to:

Wiki/TheOtherWiki Website/TheOtherWiki has [[https://en.wikipedia.org/wiki/Development_hell an entry]] about Development Hell, with a list of films that are either in Development Hell or once were.
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** In 2007, Creator/{{Hasbro}} ran a special fan poll that included prototypes of 1st Appearance Storm, Magneto, Comicbook/{{Gambit}} in his Muir Island uniform, Comicbook/{{Northstar}}, Aurora, Silver Samurai, Sunfire and Lilandra. Sunfire won the poll and was eventually released, with Northstar & Aurora [[note]] As part of an Amazon exclusive boxed set with other members of ''ComicBook/AlphaFlight''. [[/note]], Silver Samurai [[note]] As a "vintage" figure. [[/note]], & 1st Appearance Storm [[note]] As part of a Target exclusive two-pack based on ''Giant-Sized X-Men #1,'' alongside Thunderbird. [[/note]] all following, but still no Lilandra or Muir Island Gambit as of 2021.

to:

** In 2007, Creator/{{Hasbro}} ran a special fan poll that included prototypes of 1st Appearance Storm, Magneto, Comicbook/{{Gambit}} Gambit in his Muir Island uniform, Comicbook/{{Northstar}}, Northstar, Aurora, Silver Samurai, Sunfire and Lilandra. Sunfire won the poll and was eventually released, with Northstar & Aurora [[note]] As part of an Amazon exclusive boxed set with other members of ''ComicBook/AlphaFlight''. [[/note]], Silver Samurai [[note]] As a "vintage" figure. [[/note]], & 1st Appearance Storm [[note]] As part of a Target exclusive two-pack based on ''Giant-Sized X-Men #1,'' alongside Thunderbird. [[/note]] all following, but still no Lilandra or Muir Island Gambit as of 2021.
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* The ''Series/DoctorWho'' fan film ''Devious'', which follows a half-regenerated third Doctor working for the Time Lords, has been filming on and off since 1995. In 2009, a 12-minute preview, including the entire Jon Pertwee scene, was included on the DVD of "[[Recap/DoctorWhoS6E7TheWarGames The War Games]]". Five years later, it still isn't finished.

to:

* The ''Series/DoctorWho'' fan film ''Devious'', which follows a half-regenerated third Doctor working for the Time Lords, has been filming on and off since 1995. In 2009, a 12-minute preview, including the entire Jon Pertwee scene, was included on the DVD of "[[Recap/DoctorWhoS6E7TheWarGames The War Games]]". Five Beginning in 2018, twenty-three years later, after it still isn't finished.began production, ''Devious'' finally began releasing serialized episodes over on Youtube, with three presently availbile.
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* Universal Orlando had been trying to develop its own water park throughout the '2000s, but like the idea of a third theme park, it was put on hold due to the financial issues they were facing at the time. The water park finally came to be in 2017, under the name Volcano Bay.

to:

* Universal Orlando had been trying to develop its own water park throughout the '2000s, '2000s (They had bought the already existing Wet N' Wild in 1998), but like the idea of a third theme park, it was put on hold due to the financial issues they were facing at the time. The water park finally came to be in 2017, under the name Volcano Bay.
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* There were rumors for years about a sequel to ''Literature/ThePrincessBride'' called ''Buttercup's Baby''. In some editions of ''The Princess Bride'', this sequel was mentioned in the epilogue and was "having trouble getting published due to legal problems with S. Morgenstern's estate". An address was also listed that readers could write to for information. This was of course, completely fictional since S. Morgenstern is an alias made up by the REAL author, William Goldman. Still, people who wrote in got a sample chapter (which was simply published in later editions). In 2007, Goldman stated he actually wanted to write it, but was having trouble coming up with ideas. Nothing has been heard since.

to:

* There were rumors for years about a sequel to ''Literature/ThePrincessBride'' called ''Buttercup's Baby''. In some editions of ''The Princess Bride'', this sequel was mentioned in the epilogue and was "having trouble getting published due to legal problems with S. Morgenstern's estate". An address was also listed that readers could write to for information. This was of course, completely fictional since S. Morgenstern is an alias made up by the REAL author, William Goldman. Still, people who wrote in got a sample chapter (which was simply published in later editions). In 2007, Goldman stated he actually wanted to write it, but was having trouble coming up with ideas. Nothing has been heard since. Goldman's death in 2018 hasn't helped matters.



* Markus Zusak (''Literature/TheBookThief'') has been writing his next novel "Bridge of Clay" for nearly a decade. The book was originally supposed to be released in 2011. It was finally released in 2018, to rave reviews.

to:

* Markus Zusak (''Literature/TheBookThief'') has been writing his next novel "Bridge of Clay" for nearly a decade. The book was originally supposed to be released in 2011. [[SavedFromDevelopmentHell It was finally released in 2018, 2018]], to rave reviews.



* At the end of ''The Adventures of Ook and Gluk: Kung-Fu Caveman from the Future'', there is a sneak peek at a sequel, but there is currently no word on when or if it will be released.

to:

* At the end of ''The Adventures of Ook and Gluk: Kung-Fu Caveman from the Future'', ''ComicBook/TheAdventuresOfOokAndGlukKungFuCavemenFromTheFuture'', there is a sneak peek at a sequel, but there is currently no word on when or if it will be released.released. Given that the original book was pulled from publication in 2021 for depictions of Asian stereotypes, it's safe to say that no sequel will ever get published.
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* Tasmania has been considered for an [[UsefulNotes/AustralianRulesFootball Australian Football League]] team since at least 1990, only to find itself left out in each of the league's expansions since then, in favor of second teams in cities already served by the league (Adelaide, Perth) and teams in areas where UsefulNotes/RugbyLeague is more popular than Aussie Rules (Sydney, Queensland). This has left Tasmania as the only Australian state without an AFL team. Currently, two of the league's Melbourne based teams (Hawthorn, North Melbourne) play a few home games on the island every year, with the Tasmanian government paying some of the expenses, but the state has basically told the league that they'll cancel this arrangement if Tasmania isn't awarded a full-time team, and the league is scheduled to vote on it in August of 2022. There has also been talk of North Melbourne or Hawthorn just permanently relocating to Tasmania. The Northern Territory has also been involved in expansion talk, but is considered more of a longshot due to its sparse population and lack of facilities.[[note]]In a similar arrangement to Tasmania, the Melbourne-based Melbourne Demons and Western Bulldogs play some home games in the NT every year. The Australian Capital Territory also lacks an AFL team, but the league has basically assigned it to Greater Western Sydney, who play some home games in Canberra.[[/note]] Expansion outside Australia is also on the backburner, with New Zealand often mentioned as a possibility, and there was even a short-lived discussion about launching an AFL team based in the US in TheEighties (the Los Angeles Crocodiles).

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* Tasmania has been considered for an [[UsefulNotes/AustralianRulesFootball Australian Football League]] team since at least 1990, only to find itself left out in each of the league's expansions since then, in favor of second teams in cities already served by the league (Adelaide, Perth) and teams in areas where UsefulNotes/RugbyLeague is more popular than Aussie Rules (Sydney, Queensland). This has left Tasmania as the only Australian state without an AFL team. Currently, two of the league's Melbourne based Melbourne-based teams (Hawthorn, North Melbourne) play a few home games on the island every year, with the Tasmanian government paying some of the expenses, but the state has basically told the league that they'll cancel this arrangement if Tasmania isn't awarded a full-time team, and the league is scheduled to vote on it in August of 2022. There has also been talk of North Melbourne or Hawthorn just permanently relocating to Tasmania. The Northern Territory has also been involved in expansion talk, but is considered more of a longshot due to its sparse population and lack of facilities.[[note]]In a similar arrangement to Tasmania, the Melbourne-based Melbourne Demons and Western Bulldogs play some a home games game in the NT Alice Springs and Darwin, respectively, every year. The Australian Capital Territory also lacks an AFL team, but the league has basically assigned it to Greater Western Sydney, who play some home games in Canberra.[[/note]] Expansion outside Australia is also on the backburner, with New Zealand often mentioned as a possibility, and there was even a short-lived discussion about launching an AFL team based in the US in TheEighties (the Los Angeles Crocodiles).
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* Nevada State College, located in the UsefulNotes/LasVegas suburb of Henderson, opened in 2002, giving the state a third public four-year college (besides the University of Nevada in Reno and its Las Vegas campus, UNLV). The addition of varsity athletics on the NCAA level is part of the school's master plan; they've even selected school colors (black and gold) and a nickname (Scorpions). But the school has long struggled with its enrollment (it currently only has around 5,000 students), and the entire state has had higher education budget problems, so NSC sports has been limited to a few club teams competing in the Vegas area.
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* Tasmania has been pushing for an [[UsefulNotes/AustralianRulesFootball Australian Football League]] team since at least 1990, only to find itself left out in each of the league's expansions since then, making it the only Australian state without an AFL team. Currently, two of the league's Melbourne based teams (Hawthorn, North Melbourne) play a few home games on the island every year, with the Tasmanian government paying some of the expenses, but the state has basically told the league that they'll cancel this arrangement if Tasmania isn't awarded a full-time team, and the league is scheduled to vote on it in August of 2022. There has also been talk of North Melbourne or Hawthorn just permanently relocating to Tasmania. New Zealand has also been discussed for AFL expansion. There was even a short-lived discussion about launching an AFL team based in the US in TheEighties (the Los Angeles Crocodiles).

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* Tasmania has been pushing considered for an [[UsefulNotes/AustralianRulesFootball Australian Football League]] team since at least 1990, only to find itself left out in each of the league's expansions since then, making it in favor of second teams in cities already served by the league (Adelaide, Perth) and teams in areas where UsefulNotes/RugbyLeague is more popular than Aussie Rules (Sydney, Queensland). This has left Tasmania as the only Australian state without an AFL team. Currently, two of the league's Melbourne based teams (Hawthorn, North Melbourne) play a few home games on the island every year, with the Tasmanian government paying some of the expenses, but the state has basically told the league that they'll cancel this arrangement if Tasmania isn't awarded a full-time team, and the league is scheduled to vote on it in August of 2022. There has also been talk of North Melbourne or Hawthorn just permanently relocating to Tasmania. New Zealand The Northern Territory has also been discussed for involved in expansion talk, but is considered more of a longshot due to its sparse population and lack of facilities.[[note]]In a similar arrangement to Tasmania, the Melbourne-based Melbourne Demons and Western Bulldogs play some home games in the NT every year. The Australian Capital Territory also lacks an AFL expansion. There team, but the league has basically assigned it to Greater Western Sydney, who play some home games in Canberra.[[/note]] Expansion outside Australia is also on the backburner, with New Zealand often mentioned as a possibility, and there was even a short-lived discussion about launching an AFL team based in the US in TheEighties (the Los Angeles Crocodiles).
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* Tasmania has been pushing for an [[UsefulNotes/AustralianRulesFootball Australian Football League]] team since at least 1990, only to find itself left out in each of the league's expansions since then, making it the only Australian state without an AFL team. Currently, two of the league's Melbourne based teams (Hawthorn, North Melbourne) play a few home games on the island every year, with the Tasmanian government paying some of the expenses, but the state has basically told the league that they'll cancel this arrangement if Tasmania isn't awarded a full-time team, and the league is scheduled to vote on it in August of 2022. There has also been talk of North Melbourne or Hawthorn just permanently relocating to Tasmania. New Zealand has also been discussed for AFL expansion. There was even a short-lived discussion about launching an AFL team based in the US in TheEighties (the Los Angeles Crocodiles).

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* Any [[ObjectShows Object Show]] can fall into this territory. If it doesn't complete its first (or at least newest) season like ''WebAnimation/BattleForDreamIsland'' or ''WebAnimation/InanimateInsanity'' did, its next episode will fall flat, and eventually fade out of the black with no word on renewal, or else it could lead to it getting canceled altogether. Reasons can vary but it's usually due to the creator being unable to keep up with school/work and/or their own lack of interest.
** For example, BFDIA was never completed and only got cancelled after 6 episodes, even IDFB was canned after a single episode.
** Luckily, [[SavedFromDevelopmentHell an object show can get revived by making a reboot after it's original failed]], but sometimes can [[SubvertedTrope fall flat afterwards]].

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* Any [[ObjectShows Object Show]] can fall into this territory. If it doesn't complete its first (or at least newest) season like ''WebAnimation/BattleForDreamIsland'' or ''WebAnimation/InanimateInsanity'' did, its next episode will fall flat, and eventually fade out of the black with no word on renewal, or else it could lead to it getting canceled altogether. Reasons can vary but it's usually due to the creator being unable to keep up with school/work and/or their own lack of interest. \n** For example, BFDIA was never completed and only got cancelled after 6 episodes, even IDFB was canned after a single episode.\n** Luckily, [[SavedFromDevelopmentHell an object show can get revived by making a reboot after it's original failed]], but sometimes can [[SubvertedTrope fall flat afterwards]].afterwards]].
** BFDIA was never completed and only got cancelled after 6 episodes, even IDFB was canned after a single episode.

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[[folder:Web Animation]]
* Any [[ObjectShows Object Show]] can fall into this territory. If it doesn't complete its first (or at least newest) season like ''WebAnimation/BattleForDreamIsland'' or ''WebAnimation/InanimateInsanity'' did, its next episode will fall flat, and eventually fade out of the black with no word on renewal, or else it could lead to it getting canceled altogether. Reasons can vary but it's usually due to the creator being unable to keep up with school/work and/or their own lack of interest.
** For example, BFDIA was never completed and only got cancelled after 6 episodes, even IDFB was canned after a single episode.
** Luckily, [[SavedFromDevelopmentHell an object show can get revived by making a reboot after it's original failed]], but sometimes can [[SubvertedTrope fall flat afterwards]].
** ''[[https://www.youtube.com/watch?v=tPE0FMi4CQI Code Red]]'' is an upcoming object show that has been gaining massive popularity in the Object Show Community from its intro and teaser. The only problem is that it's been "upcoming" for the past ''four years'' without any updates let alone episodes due to the creator's combined demotivation and OldShame. In an [[https://www.youtube.com/watch?v=oC85N4ak2AQ OSC podcast]], he stated he would ''eventually'' release the episode but it's up to debate of [[OrphanedSeries whether he would continue the series or not]].
* ''Paradigm Spiral'' is an {{animesque}} web-cartoon, with a manga-style comic on the side. It's ''RWBY''-inspired to the point where it's caused controversy for plagiarism. ''Paradigm Spiral'' has been in development since 2015 with not much progress. Its first episode was still in-progress as of 2017, but the official Youtube channel has since removed all its videos.
[[/folder]]



* Any [[ObjectShows Object Show]] can fall into this territory. If it doesn't complete its first (or at least newest) season like ''WebAnimation/BattleForDreamIsland'' or ''WebAnimation/InanimateInsanity'' did, its next episode will fall flat, and eventually fade out of the black with no word on renewal, or else it could lead to it getting canceled altogether. Reasons can vary but it's usually due to the creator being unable to keep up with school/work and/or their own lack of interest.
** For example, BFDIA was never completed and only got cancelled after 6 episodes, even IDFB was canned after a single episode.
** Luckily, [[SavedFromDevelopmentHell an object show can get revived by making a reboot after it's original failed]], but sometimes can [[SubvertedTrope fall flat afterwards]].
** ''[[https://www.youtube.com/watch?v=tPE0FMi4CQI Code Red]]'' is an upcoming object show that has been gaining massive popularity in the Object Show Community from its intro and teaser. The only problem is that it's been "upcoming" for the past ''four years'' without any updates let alone episodes due to the creator's combined demotivation and OldShame. In an [[https://www.youtube.com/watch?v=oC85N4ak2AQ OSC podcast]], he stated he would ''eventually'' release the episode but it's up to debate of [[OrphanedSeries whether he would continue the series or not]].



* ''Paradigm Spiral'' is an {{animesque}} web-cartoon, with a manga-style comic on the side. It's ''RWBY''-inspired to the point where it's caused controversy for plagiarism. ''Paradigm Spiral'' has been in development since 2015 with not much progress. Its first episode was still in-progress as of 2017, but the official Youtube channel has since removed all its videos.
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None

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** ''[[https://www.youtube.com/watch?v=tPE0FMi4CQI Code Red]]'' is an upcoming object show that has been gaining massive popularity in the Object Show Community from its intro and teaser. The only problem is that it's been "upcoming" for the past ''four years'' without any updates let alone episodes due to the creator's combined demotivation and OldShame. In an [[https://www.youtube.com/watch?v=oC85N4ak2AQ OSC podcast]], he stated he would ''eventually'' release the episode but it's up to debate of [[OrphanedSeries whether he would continue the series or not]].
Mrph1 MOD

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Blade updated


* In July 2015, Marvel announced that Tim Seeley and Logan Faerber were working on a new ''Comicbook/{{Blade}}'' series starring Blade's daughter, Fallon Gray. As of July 2016, it still hasn't shown up. According to Tim Seeley himself, a new artist has taken over, Afua Richardson, while he has quit due to fans throwing a shitstorm over a white man doing a black girl's comic.

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* In July 2015, Marvel announced that Tim Seeley and Logan Faerber were working on a new ''Comicbook/{{Blade}}'' series starring Blade's daughter, Fallon Gray. As of July 2016, it April 2022, it's apparently still hasn't shown up. According on the way, but now as ''Bloodline: Daughter Of Blade'', with his daughter renamed to Tim Seeley himself, a new artist has taken over, Afua Richardson, while he has quit due to fans throwing a shitstorm over a white man doing a black girl's comic.Brielle. The original creative team is no longer involved and it'll now be written by Danny Lore and illustrated by Karen S. Darboe.
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* ''Pinball/{{Alien|2017}}'' was revealed at the 2014 Pinball Expo, slated for release in April 2015. (Creator/DennisNordman [[http://www.pinballnews.com/news/nordmanheighway.html left]] Creator/HeighwayPinball in part because he felt it would be impossible to complete the game in such a short span of time.) The game was delayed several times afterward, with subsequent release windows later in 2015 and 2016 also falling through, before it ultimately begin shipping in 2017.[[note]]Officially, [[https://pinside.com/pinball/forum/topic/alien-pinball-official-game-thread/page/219#post-3599069 the first game went out in February]], though [[https://www.thisweekinpinball.com/twip-the-fall-of-heighway-pinball-new-info-on-elvira-3-iron-maiden-le-more This Week in Pinball's postmortem on Heighway]] claims that ''Alien'' began arriving in customers' homes that July.[[/note]] By most accounts, the reason for this was that the game had a TroubledProduction (including issues with design and manufacturing, licensing woes, and alleged mismanagement from Andrew Heighway).

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** With the release of the Necrons during the halloween of 2011, the Sisters of Battle is now literally the oldest range, having not received a new model in the longest time.

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** With the release of the Necrons during the halloween Halloween of 2011, the Sisters of Battle is now literally the oldest range, having not received a new model in the longest time.


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* ''TabletopGame/MutantsAndMasterminds'' itself had a low-key version of this with the initial release of the 3E system as the DC Comics themed ''DC Adventures''. According to some of the writers on the project, the initial system was completed, and characters built, almost a year before the release, during which time Green Ronin went back and forth with DC Comics about which "iconic" version of the character to build (particularly since DC was moving towards the NU52 continuity) as well as a lot of squabbles among DC writers about the Power Level of their favored characters on a relative and absolute level.
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** Each figure in the Mojo wave was originally supposed to include a member of the X-Babies (child clones of various Marvel heroes created by Mojo). 1st Appearance Comicbook/{{Daredevil}} was supposed to come with Wolvie and Shadow Kitty (Comicbook/{{Wolverine}} and Comicbook/KittyPryde), [[Characters/XMenMojoverse Longshot]] with Shower (Comicbook/{{Storm}}), Baron Zemo with Colossusus (Comicbook/{{Colossus}}), Comicbook/TheFalcon with Captain Amerikid (Comicbook/CaptainAmerica), Comicbook/{{Psylocke}} with Thunderstorm ([[Comicbook/TheMightyThor Thor]]) and Comicbook/LukeCage with Creepy Crawler (Comicbook/{{Nightcrawler}}). Prototypes for child versions of Comicbook/IronMan and Comicbook/{{Hawkeye}} were also revealed. Rising production costs led to [=ToyBiz=] abandoning the X-Babies idea, and the Daredevil figure ended up being replaced with a 1st Appearance Iron Man.

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** Each figure in the Mojo wave was originally supposed to include a member of the X-Babies (child clones of various Marvel heroes created by Mojo). 1st Appearance Comicbook/{{Daredevil}} was supposed to come with Wolvie and Shadow Kitty (Comicbook/{{Wolverine}} and Comicbook/KittyPryde), [[Characters/XMenMojoverse Longshot]] with Shower (Comicbook/{{Storm}}), (Comicbook/{{Storm|MarvelComics}}), Baron Zemo with Colossusus (Comicbook/{{Colossus}}), Comicbook/TheFalcon with Captain Amerikid (Comicbook/CaptainAmerica), Comicbook/{{Psylocke}} with Thunderstorm ([[Comicbook/TheMightyThor Thor]]) and Comicbook/LukeCage with Creepy Crawler (Comicbook/{{Nightcrawler}}). Prototypes for child versions of Comicbook/IronMan and Comicbook/{{Hawkeye}} were also revealed. Rising production costs led to [=ToyBiz=] abandoning the X-Babies idea, and the Daredevil figure ended up being replaced with a 1st Appearance Iron Man.



** When Creator/{{Hasbro}} first took over the license, there were plans for a stopgap wave made up of repainted ''Marvel Legends'' and ''X-Men Classics'' figures from [=ToyBiz=]. The line was scheduled to include Wolverine, the ''Comicbook/MutantX'' version of Comicbook/{{Iceman}}, and the [[Comicbook/UltimateMarvel Ultimate]] versions of Comicbook/{{Cyclops}}, Comicbook/{{Magneto}} and Captain America. While photos of the figures made their way online, the toys themselves were never released.

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** When Creator/{{Hasbro}} first took over the license, there were plans for a stopgap wave made up of repainted ''Marvel Legends'' and ''X-Men Classics'' figures from [=ToyBiz=]. The line was scheduled to include Wolverine, the ''Comicbook/MutantX'' version of Comicbook/{{Iceman}}, and the [[Comicbook/UltimateMarvel Ultimate]] versions of Comicbook/{{Cyclops}}, Comicbook/{{Cyclops|MarvelComics}}, Comicbook/{{Magneto}} and Captain America. While photos of the figures made their way online, the toys themselves were never released.
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* Hot Toys is infamous for showing off prototypes of characters from their various licenses, only to never formally produce them for retail. Examples include:
** Comicbook/ProfessorX from ''Film/XMenFirstClass''.
** The Rhino from ''Film/TheAmazingSpiderMan2''.
** Yellowjacket from ''Film/AntMan''.
** The Batmobile from the 60s ''Series/{{Batman}}'' show.
** Mantis from ''Film/GuardiansOfTheGalaxyVol2''.
** The titular protagonist of ''Film/{{Shazam}}''.
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Update


* ''Literature/ASongOfIceAndFire'': After the first three books were published over four years, ''A Feast for Crows'' took five years to complete due to an aborted five-year TimeSkip in the plot. ''A Dance with Dragons'' took six years to complete. ''The Winds of Winter'' is taking more than nine years to write. The delays over the books caused ''Series/GameOfThrones'' to [[OvertookTheManga overtake the books]] and be completed before ''Winds'' even got a release date.

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* ''Literature/ASongOfIceAndFire'': After the first three books were published over four years, ''A Feast for Crows'' took five years to complete due to an aborted five-year TimeSkip in the plot. ''A Dance with Dragons'' took six years to complete. ''The Winds of Winter'' is taking more than nine ten years to write. The delays over the books caused ''Series/GameOfThrones'' to [[OvertookTheManga overtake the books]] and be completed before ''Winds'' even got a release date.
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Fixed an error.


Compare to ExtremelyLengthyCreation, where a work did take a long time to come to fruition, but with no problems involved

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Compare to ExtremelyLengthyCreation, where a work did take a long time to come to fruition, but with no problems involved
involved.
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If you're looking for a breather from this page, we suggest visiting SugarWiki/DevelopmentHeaven.
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** Creator/JMichaelStraczynski announced on Patreon and Twitter that the book would be ready to submit for publication Spring 2021.

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** Creator/JMichaelStraczynski announced on Patreon and Twitter that the book would be ready to submit for publication Spring 2021. In September 2021 he tweeted that it was now completed and with an agency, who were looking for a publisher.

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