Since I don't expect Smash Bros 4 or Zelda HD to be appearing, in no particular order:
Monster Hunter 4 (3DS): Not sure I need to explain this one.
Tekken (WiiU): I played Tekken 6 for some time and couldn't get the hang of it. I rented Tekken 3D, and got good with a few characters, but I'm hoping the WiiU version will be able to keep me occupied fighting game wise until SSB4. Besides, I want to make Zuko Jin, and Hideyoshi Leo. Creation modes are big way to get my sale.
Playstation All Stars: Battle Royale (PSV): I know, I know, it's a rip off, but it's still a very interesting looking title. I probably won't own a PS3, but I've seen some intriguing software come out for the Vita (Including the new Ys title), and will be considering buying one sometime after I get the WiiU. I hope for Wanderer and Lara Croft to make it in.
Samurai Warriors Chronicles 2
Tekken Tag Tournament 2
Tekken X Street Fighter
Dead or Alive 5