It's coming to Europe and Latin America too!
Project X Zone, the crazy crossover game featuring Namco Bandai, Capcom, and Sega characters all working together, is coming to North America! Namco will be bringing the role-playing fighting game hybrid to North American, European, Australia, and Latin American shores with full English localization, at least in terms of the text.
The voice acting, on the other hand, will just be sticking with the original Japanese voices. There's a ton of dialogue in the game, so I can imagine why Namco wouldn't see the appeal of spending the money on English voiceover with a handheld title.
Other than that, you can expect everything from the original release fully intact. Everyone played nice so there wasn't any licensing issues. Yes, all you perverts can rest easy as all the crazy boob "fan service" hasn't gone anywhere.
We'll have an updated hands-on impression of Project X Zone for you a little later today. Otherwise, expect the mega crossover game to be out sometime this Summer for the 3DS.