Right now I don't have a Wii U. By the end of the year I'll have a Wii U and (for sure) WindWaker HD and NSMBU. I might get Rayman Origins because I played it at BestBuy and surprisingly liked it. If Project X comes out this year (yeah... right) then I'll try to get that because it looks simply amazing.
Also, MK if that comes out.

Own...

Nintendoland
NSMB Wii U
Scribblenauts Unlimited
Zombi U

I may buy Wii Fit U depending on the features they add. Rayman Legends is looking like a day one purchase unless something goes terribly wrong. Wonderful 101, Smash Bros, Mario Galaxy, Yoshi's Epic Yarn, X, and maybe Wii Party U.

I have NSMBU, NintendoLand, AC3, Blops2, Arkham City and Trine2. All are excellent. I'll buy Ninja Gaiden if it gets reduced to a cheap price. I might buy ZombieU. Rayman is a possible purchase. Good chance I will buy Pikmin 3. I definitely will buy Wind Waker as soon as it's out. Right now I have more than enough games to play. Blops takes a lot of my game time with online multiplayer, and I just started Xenoblade so my games need is pretty low.

Nintendoland
ZombiU (add me as friends if you have it too, I need more ammo)
Sonic Racing (no need for Mariokart)
Rabbidsland (well, not the best purchase sadly )
Tank!Tank!Tank!
Darksiders II

Download:
Trine 2
The Cave (Ron Gilbert hasn't lost his humour )
Little Inferno (good)

VC:
Balloon Fight

Will get:
Monster Hunter 3 Ultimate (the reason I bought the WiiU
Lego City Undercover
Wonderful 101
Pikmin 3
Windwaker HD
X

VC:
I think all the stuff for 30 cents

I don't own one yet, but there are four possible dates for me to buy it this year. The week my birthday is, MH3U release, Wind Waker release or another unannounced release.
The most possible date is MH3U, which will be my first purchase. After that it is likely to be Lego City or Resident Evil Revelations.

Nintendo Land
New Super Mario Bros. U
ZombiU

Next one will be Aliens Colonial Marines as far as I can see.
Which oddly will create the situation of a 50/50 split between 1st and 3rd party games on a Nintendo system which hasn't happened at any point in time since at least the SNES for me .

After that Wind Waker HD and Yoshi's Epic Yarn whichever comes first.

Current:
NSMBU
ZombiU
COD Blops2
Skylanders Giants
NintendoLand
Trine2

Next (of what is currently released):
NanoAssault
BatmanAC
AC3

Next (of what is coming 2013):
All $0.30 VC titles as well as possible others I have on Wii.
Rayman
Lego City
Pikmin3
Wonderful 101
Zelda WWHD
Bayonetta2

Current (in order):
Nintendo Land
Mass Effect 3
Assassins Creed 3
Mighty Switch Force HD
New Super Mario Bros U

Next:
Trine 2
RE: Revelations HD
Wind Waker HD

How have you liked Trine 2? It looks amazing!

I own:

Nintendoland
ZombiU
Darksiders II
Sonic & All-Stars Racing Transformed
NSMBU
Blops2
AC3
Batman Arkham City
Mass Effect 3
Tekken Tag Tournament 2
Little Inferno, Trine II, Ballon Fight

Next:

Scribblenauts Unlimited
Rayman
Lego city undercover
Pikmin III
Alien Colonial Marines
Game & Wario