Alrighty KH3 fans. I've got a lot of Ideas of new KH world/ Summons. Here's some of them
1.) The Muppets: I know it sounds silly but it could work if done right. For world I'm thinking a KH2 version of "Under the Sea" aka a bunch of Music songs. It would be a great comical world where Sora, Donald, and Goofy meet up with Kermit and the gang, who are about to put on a new musical but need 3 more people to join. Just imagine Sora, Donald, and Goofy singing songs like "Squeal" and what not. Then the very last song before they leave would be a duet between Kermit and Sora singing "Rainbow Connection". That song fits perfectly into the Kingdom due to it's message and feelsy mood. As they're singing it images of the other protagonist could pop up at cue to certain lyrics. If you don't understand yet try listening to the song. Plus you could get a cool Banjo or Theatrical Keyblade at the end
2.) Bolt: I didn't enjoy the movie but Bolt as a Summon would be pretty good. There aren't any thunder based Summons and running around with cut lil bolt would be awesome.
3.) Treasure Planet: This world would be epic, I haven't seen it recently so I don't remember the plot fully. But it would be a perfect place for Sora to learn how to use his Armor Glider suit thingy. You know what I mean.
If you have anyother Ideas for summons or worlds, wanna agrue why my ideas are "dumb", or wanna add on or agree with what I said, Reply and send your thoughts.