I believe if it's like BBS or 358/2 days it will take til' September or so, but it if will be like KH2, it will be out around 3 months after Japan finishes with it.
I've been looking on this website for a few weeks so i decided to make an account and get to know some of you. I'm very exited for the upcoming KH game for the 3DS (Gives me a reason to buy one). Hope to see you all in the forums!