"Wii" umm yes it was what 1st party Wii games came out once Wii U launched? Hell what Wii games launched in 2012 besides the "operation rain fall" games?
Also I say this every time this topic comes up and I'll continue to say it. 3DS DOESN'T NEED ANYMORE GAMES. It has the largest 1st party line-up of any Nintendo console EVER! It will continue to sell on those titles alone as well as the fact the hardware is cheap. While Nintendo has said 3DS sold the most software within the holiday season than they have in awhile. I GUARANTEE you they are from software previously released years ago. Hey Pikmin, Mario Party: Star Rush, Mario Sports Superstars, Yoshi + Poochy Wooly World, Federation Force, Ever Oasis, Metroid: Samus Returns, etc. bet weren't that big a part of it. Nintendo hasn't even released sales data for the following games. I bet people are buying 3DS's for the BIG evergreen titles like Smash, Mario Kart 7, NSMB2, 3D Land, OOT3D, etc.
I really do feel this is the last year for 3DS and I bet support (from Nintendo at least) won't last past summer time. Kirby Battle Royale, maybe a Wario game, and if that rumored Link's Awakening remake is true is all I see Nintendo releasing for the system this year. Link's Awakening (if real) will probably be the systems swan song.