Great news! Was going to import, but never got around to modding my Wii. Day 1.
This has been confirmed by various Gamestops.
http://www.vg247.com/2011/12/02/xenoblade-chronicles-to-release-in-the-us-in-april-as-gamestop-exclusive/
As to its being a Gamestop exclusive, could be, but then again could be a limited edition version that is exclusive
Currently Playing: Shin Megami Tensei: Devil Survivor Overclocked, Professor Layton and the Curious Village
Anticipating: Xenoblade, The Last Story, Mario Kart 7, Rayman Origins, Zelda SS, Crush3D, Tales of the Abyss 3DS, MGS:Snake Eater 3DS, RE:Revelations, Time Travellers, Professor Layton vs. Ace Attorney, Luigi's Mansion 2, MH TriG, DQ Monsters, Heroes of Ruin