3rd parties Screw Nintendo Again.

Ninja Gaiden 3: Razor's Edge being ported back the Xbox360 for the final crappy edition of the game.

Batman Arkham City Armored Edition 100% nothing new port to wii u.

Scribblenauts Unlimited being ported to PC.

FIFA 13 EA Couldn't be bothered to port the whole game to Wii u.

Mass Effect 3: Special Edition given to Straight Right to port to wii u, couldn't be assed to post in house, missing DLC content.

Metro: Last Light No port because they are going bankrupt, but said Wii U has slow CPU, we all know they had no money to port the game really.

So, ports of current-gen games are shitty because the system is set up to play next-gen games. But next-gen ports will also be terrible because of how underpowered the console is. Maybe 5 years from now it will have a handful of good exclusives like the wii does, but I don't know if that's worth the price of entry. It definitely isn't worth it right now or in the near future.