History WhatCouldHaveBeen / TheAvengersEarthsMightiestHeroes

** Josh Fine in an interview says if he continued to helm the series for a third season, said season would have been the "Magic Season" (Season 1 being the Assemble Season, Season 2 being the Cosmic Season). He didn't go into too much detail, but some have speculating that Comicbook/DoctorStrange, Dormammu, Comicbook/ScarletWitch, and other characters would have shown up. He's also mentioned that Tony and Maria's conversation about registering super-heroes from episode 28 would have been followed up. Apparently, Fine even had some ideas for a FOURTH Season, but hasn't given any details.
** The show contains elements from what was originally going to be a Hulk series. This is probably why many of the Hulk's RoguesGallery appear on the show since they don't normally menace the Avengers (aside from Absorbing Man).

** Ron Wasserman, the composer of the themes of ''Series/MightyMorphinPowerRangers'' and ''WesternAnimation/XMenTheAnimatedSeries'', had tried pitching a theme song for the show.
** [[https://www.youtube.com/watch?v=Z_G7_s8Bi9o This trailer]] boasts voices and animation that differ from the actual show.

** Mockingbird was due to join the Avengers, but it became too expensive to have EG Daily voice a major protagonist.
** In an interview with Josh Fine, he said that they would have liked to introduce ComicBook/{{Taskmaster}} in Season 3.
** According to Chris Yost, "Emperor Stark" started off as a faithful adaptation of the ''Emperor Doom'' graphic novel, but with Vision replacing Wonder Man as the Avenger who was unaffected by Doctor Doom's mind-control device. A script excerpt Yost later released on Twitter supports this claim, showing a ColdOpen where Doctor Doom captures the Purple Man to exploit his powers, much like in the comic.
** The original writers wanted to put ''Earth's Mightiest Heroes'' in the same continuity as ''WesternAnimation/{{Wolverine and the X|Men2009}}-Men''. Chris Yost once wrote in one of Marvel's live blogs that they take place in the same universe, but later said that the swift cancellation of ''Wolverine and the X-Men'' ultimately put a damper on these hopes.
** Captain America was originally supposed to fight the Nazis in the World War 2 flashbacks, but ExecutiveMeddling meant that the creators could have either realistic firearms or Nazis, but not both. They went with the firearms.
** The solicit synopsis for the twelfth issue of the ''Marvel Universe'' comic series suggests the existence of an unreleased comic placing the Avengers and Loki in an EnemyMine situation.
** A [[http://thomasperkins.blogspot.ca/search/label/Earth%27s%20Mightiest%20Heroes blog]] belonging to one of the show's character designers showed some potential plots that the show could have gone into, including:
*** [[ComicBook/FantasticFour the Impossible Man]] giving Ant-Man, Wasp, Captain America, and the Hulk the powers of the Fantastic Four.
*** The appearances of Deathlok, Daimon Hellstrom, 3-D Man and ComicBook/RomSpaceknight (though it's likely if they had attempted that, it wouldn't have been possible due to legal hangups with Creator/{{Hasbro}}, successor to Parker Brothers, who licensed Rom to Marvel).
*** The ComicBook/XMen and the Avengers teaming up, with Comicbook/{{Rogue}} apparently having Ms. Marvel's powers and costume.
*** Hulk fighting alongside ''[[https://en.wikipedia.org/wiki/The_Saga_of_Crystar Crystar, Crystal Warrior]]'' (an obscure MerchandiseDriven comic from Marvel in the early 80s).
*** Giant-Man fighting alongside Captain Marvel (Comicbook/MonicaRambeau) and Machine Man (shades of ''ComicBook/{{Nextwave}}'', perhaps?)
*** Mockingbird being saved by the Human Fly.
*** The Wasp becoming ComicBook/CaptainUniverse.
*** Bill Foster becoming the new Giant-Man (or possibly Goliath).
*** Thor and Adam Warlock fighting what appears to be [[ComicBook/DoctorStrange Shuma-Gorath]].
*** The Hulk fighting Comicbook/OmegaTheUnknown.
*** Captain America encountering Baron Blood and Comicbook/{{Morbius}}.
** ''WesternAnimation/AvengersAssemble'' was originally going to be a follow-up to ''Earth's Mightiest Heroes'' with an emphasis on introducing kids to the wider Franchise/MarvelUniverse. When ''Film/{{The Avengers|2012}}'' broke box office records, the EMH sequel was scrapped ''mid-production'' by ExecutiveMeddling so that Disney could launch a cartoon with the heroes from the movie instead.
** Creator/ColleenOShaughnessey [[https://mobile.twitter.com/VOColleen/status/1139596758688731136?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1139596758688731136&ref_url=https%3A%2F%2Fs9e.github.io%2Fiframe%2F2%2Ftwitter.min.html%231139596758688731136 originally]] auditioned for Pepper before she was cast as Wasp.
** Christopher Yost [[https://twitter.com/yost/status/1244056612303560704 shared a few plans]] for the back-half of season two before Creator/ManOfActionStudios took over:
*** Galactus was going to be the villain of a three-part episode instead of the finale, where he attacked Hala instead of Earth.
*** The New Avengers would've been formed after the Galactus three-parter, as the regular Avengers would've been halfway across the universe at that point.
** Comicbook/TheSentry was originally going to be introduced in "Assault on 42," and eventually would've gotten his own spotlight episode before going on to join the New Avengers. An excerpt from an early draft of "New Avengers" also revealed that Yellowjacket would've been part of the team, as he and Spider-Man were the ones who actually went to recruit the Sentry at his home in the suburbs.
** [[https://www.comicsbeat.com/avengers-earths-mightiest-heroes-season-3-christopher-yost/ Christopher Yost posted some additional details]] on what might have occurred in Season 3 through his Twitter, including the debuts of (in addition to the aforementioned Doctor Strange, Scarlet Witch, Comicbook/{{Quicksilver}} and Dormammu) the X-Men, Comicbook/TheDefenders, Comicbook/TheEternals, [[Comicbook/SubMariner Namor]], Tigra, the Comicbook/WestCoastAvengers and Comicbook/{{Nova}}, as well as villains like Comicbook/{{Magneto}}, Nightmare, Kulan Gath, the Juggernaut, the High Evolutionary and Rama-Tut. A multi-part storyline adapting elements of both ''Comicbook/AvengersVsXMen'' and ''Comicbook/HouseOfM'' would've served as the finale.