Refitted For Sequel / Western Animation

• The idea of the origins of the Avatar in Avatar: The Last Airbender has been kicked around since book 2, but was eventually fitted into book 2 of the sequel series The Legend of Korra.
• The Simpsons episode "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.
• Star Wars: The Clone Wars:
  • Many of Ralph McQuarrie's designs were redesigned for the series:
    • The Kwazel Maw is based on his 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.

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  • 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.

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  • 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.

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  • 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.
• Star Wars Rebels:
  • The Ghost's cockpit was originally designed for a ship called the Silver Angel that was intended to appear in a sixth season of The Clone Wars that never happened due to the series' cancellation, with the showrunners deciding to recycle the design as they liked it and felt there wouldn't be another opportunity for it to be seen. However, the Angel, with its original cockpit design, would eventually appear in the uncancelled seventh season of The Clone Wars that came out after the end of Rebels.
  • Zeb's design comes from unused concept art of Chewbacca from A New Hope.
  • Fifth Brother is based on unused designs for the Knights of Ren from The Force Awakens.
  • The outfit worn by the young Princess Leia is an unused costume Ralph McQuarrie designed for Leia in A New Hope.
  • Chopper's design is based on concept art for R2-D2.
  • The Bendu is based on the original concept for Yoda, back when the character was going to be a gigantic creature instead of the little green dude everyone knows and loves. His name also comes from the "Jedi-Bendu", Lucas' original name for the Jedi.
• Star Wars Resistance:
  • Flix's species, the Gozzo, is based off of concept art for the Ewoks.
  • Jace Rucklin seems to be based off concept art for Kanan and Sabine, both of whom were considered as Dark-Skinned Blondes in brown and grey clothing at points during production.
• 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.

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