Swish

I think they're still deciding what worlds to put into the game. Remember, the game just entered development in June. And now that Frozen is such a huge success, I could see Nomura and his staff wanting to have a Frozen world for KH3

Here is a good question. Would you guys want Elsa as a party member, or would you rather fight her as a boss?

I think Frozen has a lot of potential as a world. Riku could really relate with Elsa and Sora with Anna