I seriously doubt a Wii version. First of all, SE has a great PS3 engine. Second, all the KH fans own the PS2, and when the price of the PS3 will drop more PS2 owners will jump over to the PS3.
Most Wii owners never played the previous KH games because:
1) they're mainstream people like your sister, your parents
2) they have owned the previous nintendo consoles and no PS2.
Keep in mind that the KH story is one that continues, you wouldn't understand the story if you haven't played the previous games.







