I'm thinking that in kingdom hearts 3 highly appears this new worlds:
1. 101 Dalmatians world because there are a great villain that is Cruella-devil
2. Dumbo's world or Dumbo's circus, a great villain that is the Ringmaster
3. The rescuers world with Medusa like a villain
4. Lady and the tramp world
5. Bambi's world or bambi's forest
6. The fox and the hound (tod & toby)
Finally the great mouse detective with Ratigan like a villain
Returning worlds i like to see:
1. Cinderella world
2.Atlantica
3.Enchanted dominion
4.Destiny islands
5.Land of dragons
6.The hunchback of notre dame
7.Prankster's Paradise
That's all !!! of the worlds I have it in mind..............