Squashini Kun

personally i think Gravity Falls would fit the bill pretty well

These are some of the worlds i hope will be in KH3 Gravity Falls A Ghibli Movie (Hopefully Spirited Away) Atlantis Treasure Planet Guardians Of The Galaxy Agrabah Neverland Wonderland/Underland Port Royal Indiana Jones Game Central Station and now for some Unlikely choices: Twice Upon a Time Timeless River Symphony Of Sorcery 2000 Castle Of Dreams

And hey, maybe with his return, the Unversed could make a comeback with him?

I think TGS and Jump Festa are more likely to get a new trailer