Now that it's more definite on what's coming out:
Will be buying for sure:November 18th
Premium Bundle - comes with Nintendo Land (Nintendo)
Assassin's Creed 3 (Ubisoft)
Disney Epic Mickey 2: The Power of Two (Disney Interactive)
New Super Mario Bros. Wii U (Nintendo)
Tank! Tank! Tank! (Namco)
ZombiU (Ubisoft)
Holiday 2012
Warriors Orochi 3 Hyper (Tecmo Koei)
This year
007 Legends (Activision)
Call of Duty: Black Ops 2 (Activision)
Launch window (til end of March or something like that)
Aliens: Colonial Marines (Sega) - February 12th
Avengers: Battle for Earth (Ubisoft)
Batman: Arkham City Armored Edition (WB Games)
Game & Wario (Nintendo)
Monster Hunter 3 Ultimate (Capcom) - March
Ninja Gaiden 3: Razor's Edge (Nintendo)
Pikmin 3 (Nintendo)
The Wonderful 101 (Nintendo)
Might buy:November 18th
Darksiders 2 (THQ)
Rabbids Land (Ubisoft)
Scribblenauts Unlimited (5th Cell)
Holiday 2012
Trine 2: Director's Cut (Frozenbyte)
This year
Nano Assault Neo (Shin'En)
Launch window
Mass Effect 3: Special Edition (EA)
Rayman Legends (Ubisoft)
Runner2: Future Legend of Rhythm Alien (Gaijin Games)
Tekken Tag Tournament 2 (Namco)
Toki Tori 2 (Two Tribes)
As for Assassin's Creed going down in price any time soon, it's not just a port, it's a multi-plat game that is coming a couple weeks after the other games only because it can't come out the same day because the system won't be out. So, if you are counting on all versions to be down to $20 in April, don't count on the Wii U game going down anytime soon.
EDit: Not that anyone cares, but my initial list for comparison:
FadedAreWii wrote:A realistic launch day to me is looking like: (for those complaining about old ports)
Zombi U (new game)
Nintendoland(hopefully comes with it) (new game)
Tank! Tank! Tank! (new game)
Aliens Colonial Marines (new game)
New Super Mario Bros U (new game)
And if they make launch or within launch window:
Pikmin 3 (new game)
Project P100 (new game)
Game and Wario (new game)
Games I will pick up down the road:
Batman Armored (old port)
Lego City (new game)
Rayman Legends (new game)
Tekken Tag 2 (new game)
Tenchu Cree... I mean Assassins Creed 3 (new game)
Scribblenauts Unlimited (new game)
Games I may pick up later:
Mass Effect 3 (old port)
Ninja Gaiden 3 (old port) (edit: possibly a little more than that and may be moving up on my list to day 1)
Darksiders 2 (will be new enough)
Definitely not a lack of content to choose from.