User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-4674269-20130124040554

http://www.capcom-unity.com/dubindoh/blog/2013/01/23/monster-hunter-3-ultimate-3ds-case-is-now-up-for-pre-order

Looks like Capcom is coming out with an exclusive MH3U case for the 3DS (Not XL).