Not only will we might get more information on KH3, but maybe the new world for Union X will finally be revealed in full. We already got a sneak peek of sorts for in it the game recently.

In the current Flower Snuggly Challenge in Union X one of the quests in the challenge (Flower Snuggly #7) takes place on a beach with palm trees, a lounge chair, and a white parasol.

Since the scene does not look like anything that fits in any of the current Disney worlds in the game (Dwarf Woodlands, Olympus Coliseum, Wonderland, Beast's Castle, Agrabah, Castle of Dreams, and Enchanted Dominion), it would have to be part of the new Disney world that we know is supposed to make its debut in Union X. As I mentioned in my predictions thread in the forums, I predict that it'll be based on Moana since she appears as a medal and the medals are created by the Book of Prophesies by taking power from future events, meaning Moana and her world do exist within the KH universe.

It's the only one that makes sense though. Aside from Lilo & Stitch, Moana is the only other Disney film that comes to mind that's set in a tropical setting and since Lilo & Stitch technically already got a world (Deep Space) in KH it would have to be Moana.

Can't be. It's already been confirmed that Union X is to get a Disney world that has not been seen in any other KH game, so whatever that beach is from it would have to be a Disney world.

Okay but,
That beach and the new world don't necessarily have any direct correlation.

So it does. Well that's kinda disappointing. I was really hoping for a new world reveal. Oh well. Although this doesn't change the fact that we might still get something (whether an actual world or the actual characters) of Moana or even The Jungle Book or Zootopia in a future KH game as characters (Moana, Maui, Mowgli, Baloo, King Louie, Nick, and Judy) from these three movies do appear as medals in KHUX, which confirms that they do exist within the KH universe.