Despite the fairly lengthy list of games announced for Wii U, there are various titles on the way to PS3 and Xbox 360 that aren't in the works for Wii U. One of these is Tomb Raider, due for release in March 2013, though a scan of Game Informer magazine has listed Wii U as a platform.
The development studio behind this title, Crystal Dynamics, stated back in January that it wasn't preparing the game for Wii U as it would want to make use of the system's capabilities rather than produce a simple port.
Given that we’ve been working on the game quite a while before Wii U was announced I think it would not be right to try and port it across. If we started building a game for the Wii U we would build it very differently and we would build it with unique functionality.
Times change and it's possible that a port will be produced for Wii U, either that or Game Informer has made an honest mistake. We'll keep an eye out for any updates or statements.