The truth is ( I mean it could very well be ) they' ll wait until the 3DS gets more popular and then they will just port the game and localize it for the western market charging full price ( 3DS price ) for a simple port of a 2 years old game just because it was " previously unreleased ".
I mean how much could it really cost to translate a bunch of text ? There are pretty good fan made translation out there done with very little resources, how difficult could it be for capcom to do it when they already have all the staff and the hired people to perform the job ?
It will come to us, but on the 3DS in a year or two, full price, localized and with very little enhancement to justify the full price tag .
It's all business.