Mnementh on 11 March 2013
I've read some news (in german, sorry):
http://www.playm.de/2013/03/monster-hunter-3-ultimate-day-one-patch-auch-zum-europaischen-launch-77222/
They say the game gets a day one patch with following content:
* support for USB-keyboards
* voice-chat
* ZR/ZL for camera-adjustments
* support for online on 3DS through an additional app
I don't know how reliable this is though.
Cross-region is announced for April, so thats another patch.
