In a recent interview with Mirror, Kingdom Hearts III Director Tetsuya Nomura revealed that Disney has express interest in possibly making a CG movie centered around Kingdom Hearts. Nomura stated..
Nothing has been thought about in terms of a cinematic piece, only because it’s difficult to put into a narrative that has become as complex as Kingdom Hearts. Of course, we do have a 15 year history so it has come up in discussions about doing some sort of cinematic piece, especially from Disney.
They are interested in making a CG movie of sort, but again, it’s difficult to make the call on how we want to execute it and how to form it. I still haven’t come to a resolution about what would be the most appropriate way in which we depict the narrative, so nothing specific has been formulated.