There's really no telling what they will do with it. They could release it on the Wii U, and has about an equal chance of that considering their latest KH game (no remakes) was on a Nintendo system.
Why are KH 1.5 and 2.5 Remix on PS3? A lot of things point to that, and it shouldn't be immediately assumed it's because of "Sony loyalism" or whatever. Nomura doesn't like the XBox, and wouldn't make much sense at all to release it on the 360 (look at those Japanese sales). The Wii U has a small install base, and the Wii can't do HD. HD remix can ONLY be done on the PS3 if they want respectable sales.








