Sandbox / Strip Spoilers

• I Knew It!:
  • Some fans predicted that Sen Takatsuki was Yoshimura's daughter and that Aogiri Tree would be using Investigators to make One-Eyed Ghouls prior to these being revealed during the final chapters.
  • Haise Sasaki is Ken Kaneki with amnesia. This one was exhaustively debated by the fandom; while the majority believed it was pretty much a given, adequately to this trope, there was a strong opposing Vocal Minority claiming that everyone else was just in denial about Kaneki's death.
  • Orochi is Nishiki Nishio, after having taken many a level in Badass.
  • Takizawa was taken by Aogiri and experimented on.
  • There were many fans that, based on the card deck, guessed that Noro was Eto's Parental Substitute. Chapter 55 reveals this be true.
  • Amon is alive, and now a half-ghoul.
  • Chapter 70 confirmed the long-time speculation concerning Yomo's sister being Touka and Ayato's mother.
  • Arima being a hybrid of a ghoul and human parent wasn't a total surprise, given how he effortlessly defeated even the most powerful of ghouls.
  • Irimi and Koma revealed to be alive in :Re was a theory of a lot of people since their disappearance at the end of the original series was pretty ambiguous.
  • Kou being a CCG spy that was tasked to infiltrate GOAT was called the moment the character was brought to the organization's hideout by Tsukiyama.
  • A ton of people had theorized that Hide was alive, since there was no body left behind.