You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
It's very unlikely the soundtrack will be made available to North America as no KH game has its soundtrack released in the U.S. or Canada since the first game. If you want a North American release, let Square Enix and Disney know you want it by writing them a letter, e-mailing them or stating this desire explicitly on the official Kingdom Hearts Facebook page. If you can get more people to do the same, that might help.
Of course, you can always import the Japanese soundtrack.