We thought it was coming last summer, but apparently not. That said, Square Enix has said that there surely will be a Kingdom Hearts III down the line. In an recent interview, Tetsuya Normura, creator of the Kingdom Hearts series and director of Final Fantasy Versus XIII, has gone record to state there will be one someday.
According to Hasegawa-san of Square, he said:
There surely will be. I really cant think of any reason why not, if everyone’s heated support continues. When it is said “Nomura will do III”, I cant say we havent thought of anything
Well, there you have it Kingdom Hearts III is thought about at least.