Capcom recently announced that a software update for the Wii U version of Monster Hunter 3 Ultimate will be released in April as a response to the feedback from the Capcom Community!
The software update will add online cross-region functionality, allowing European and North American gamers to play together online in up to four-player battles*. Monster Hunters will also be able to play the game using just the Wii U GamePad without the need for a TV screen as the software update makes the title compatible with off-TV play.
Capcom will be continuing to support Monster Hunter 3 Ultimate for several months after release with additional free of charge downloadable quests for both Nintendo 3DS and Wii U. The first quest will be available at launch.