Refitted For Sequel / Western Animation

Works with their own pages

• Star Wars Rebels

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• Avatar: The Last Airbender:
  • The idea of the origins of the Avatar has been kicked around since book 2, but was eventually fitted into book 2 of the sequel series The Legend of Korra.
  • A false Avatar was planned, which eventually became a major plot point in The Rise of Kyoshi.
• During the early planning stages of Justice League, Bruce Timm toyed with the idea of giving the team matching uniforms, but this was quickly vetoed by Paul Levitz. However, he was able to repurpose the uniforms for the Justice Lords in Season 2.
• The Simpsons:
  • Season 14's "I'm Spelling as Fast as I Can" was going to have a Lead In where Bart realises he wasted his summer and rushes all the activities he intended to do on the last day. It ended up being cut for time and used in "The Monkey Suit" instead, three seasons later.
  • The Working Title for the season 10 finale, "Thirty Minutes Over Tokyo", was "Fat Man And Little Boy", which later became the title of a season 16 episode.
  • There were on and off plans to parody The Exorcist in a Treehouse of Horror episode for decades before it happened in season 29's "Treehouse of Horror XXVIII" segment "The Exor-Sis". The first plan was to have Lisa possessed in the opening of season 8's "Treehouse of Horror VII; later, Homer was possessed in a fakeout ending of season 17's "Treehouse of Horror XVI" segment "B.I.: Bartificial Intelligence".
• The Neogenic Nightmare arc or Spiderman The Animated Series was apparently based on an early, rejected script for a Spider-Man movie which was to have been directed by Tobe Hooper.
• Star Wars: Clone Wars:
  • Asajj Ventress's design was taken from Dermot Power's early concept art for Sidious' new apprentice during the pre-production of Attack of the Clones.
• Star Wars: The Clone Wars:
  • Many of Ralph McQuarrie's designs were redesigned for the series:
    • The Kwazel Maw is based on this Concept Art for swamp creatures on Dagobah.
    • Maridun's design stems from his concepts for Return of the Jedi.
    • Orto Plutonia is based on his concepts for Hoth.
    • The Courscant park seen in "Duchess of Mandalore" is based on multiple art concepts he made.
    • The Well of the Dark Side is based on a design for Return of the Jedi where Luke would've faced the Emperor in the lower levels of Coruscant.
    • Rako's new helmet in "Friends and Enemies" is based on his concepts for Boba Fett.
  • The Eta-class shuttle is based on Joe Johnston's design for the Imperial shuttle in Return of the Jedi.
  • The Jedi jumpspeeders in "Ghosts of Mortis" are based on a speeder bike concept from Return of the Jedi.
  • The Zygerrian HH-87 Starhopper is based on an unused design for an Imperial shuttle in Return of the Jedi.
  • The design of the Phoenix ship is based on an Imperial shuttle design.
  • Rako Hardeen's helmet in "Deception" is based on a Rebel trooper design for Return of the Jedi.
  • Derrown's design dates back to Ron Cobb's concepts for a cantina alien for A New Hope.
  • The designs of the clone troopers' cold-weather gear is based on concept art associated with The Empire Strikes Back.
  • From Doug Chiang's designs:
    • The city of Cliffhold on Iego is based on his designs back in The Phantom Menace.
    • Pre Vizsla's helmet in "A Friend in Need" is based on his design for a clone trooper helmet in Attack of the Clones.
  • From Iain McCaig's designs:
    • Robonino's design comes from his unused Prequel Trilogy design for an alien Jedi.
    • Satine Kryze's look is based on a design for Queen Padmé Amidala in The Phantom Menace, and her royal guards are also based on an unused Sith design from said film.
    • Mother Talzin's design is based on his concepts for a Sith Witch in The Phantom Menace.
    • Krismo Sodi's design stems from his illustrations for Obi-Wan for The Phantom Menace.
    • Tiplee and Tiplar are based on his designs for a female Sith Lord for Attack of the Clones.
  • Padmé's headdress in the Pilot Movie (along with "Bombad Jedi") is based on an unused design for her in Attack of the Clones.
  • Tera Sinube's design based on an alien senator concept for The Phantom Menace.
  • The clone barracks on Kamino are based on designs for Attack of the Clones.
  • The Anoobas are based on Terryl Whitlatch's design for a hound creature in The Phantom Menace.
  • A Separatist starship seen in the Umbara arc is based on a starship design for Revenge of the Sith.
  • Colonel Gascon is based on an early concept design for Jar Jar Binks for The Phantom Menace.
  • Ringo Vinda is based on an concept design from Revenge of the Sith.
  • Rig Nema's design is based on an early concept design for Mace Windu.
• Steven Universe:
  • "Hit the Diamond" was going to have a scene where Steven gives nicknames to the Ruby Squad, but it ended up being cut. It took until "Back to the Moon", the Squad's second appearance, for the nickname scene to happen.
  • The show's fifth and final season had several major plot twist and ideas that had been considered since season one, including Lars' death and revival, Steven entering Pearl's gem, and Steven having his gem separated from his body.
  • Ruby and Sapphire's wedding was something the crew originally wanted in season four, but network resistance ended up delaying it until season five.
• Bob Uecker was going to play a guest role in Teen Titans Go!'s very first season. But because they couldn't find any way to fit him in, he wound up appearing in a season 5 episode instead.
• Back when it was planned as the Grand Finale of X-Men: The Animated Series, the "Beyond Good and Evil" arc was supposed to end with recurring characters Bishop, Archangel, Shard and Psylocke being inducted into the X-Men. However, the show was unexpectedly renewed for another season, so this idea was dropped. Bishop would eventually become an official member of the team in the Sequel Series X-Men '97.

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