When asked about KH3 I believe Nomura gave an answer like this "Surely when that game comes it will need to be for one of the consoles" and in a later interview when asked about if KH3 would be on current gen consoles or next gen he said something along these lines, "We are planning for this generation of consoles, because when you deal with next gen it brings on new mechanics we have to experiment with and will make it take longer to finish"
So pretty much Nomura has confirmed KH3 will be either for PS3 (Most Likely), 360, or Wii.
Lol, definatley on the ps3. The facts:
kh was never ever on xbox, he wouldnt make us go buy ANOTHER system just to keep up with the story. That would be: ps2, gba, ds, 3ds, psp, and xbox? That would be rather random.
He would need to learn new mechanics to have it on the 360! Yes there FF, but KH is NOT ff, it has a COMPLETELY different engine, and it works differently.
Third and final: That would be the riskiest move ever to put it on the 360
Its on the ps3. Theres a better chance of it being on the 3DS, PSP, or PS2 than there is it being on the 360.