Considering that Tetsuya Nomura has been working on FF Versus XIII for 5 years and also directing KH Birth By Sleep and 358/2 Days as well as Coded, he definitely hasn't had the time to get fully worked on KH III.
He did say though that he wishes to release another KH game this year in Japan means it's another spin off and he's got another spin off planned for next year as well and he says that he'll soon be in the full planning stages of KH III. But in the mean time, Nomura's priority is Versus XIII and I firmly believe that because Nomura is working on Versus XIII with a PS3 optimized engine, he'll also develop KH III on the PS3 as well.








