THQ goes into more discussion of why Metro: Last Light for Wii U was droppedClick Here to View Story
"Our look at the Wii U extended to a very early look at some very early kits. We... we did some work on it, but we made a decision fairly early on that we weren’t going to commit further resource to it. So yeah, we didn’t go too far. Take any of the comments you’ve seen attributed with a pinch of salt - it’s certainly not been based on any kind of analysis of final hardware." - THQ’s Huw Benyon
We know that THQ supports the Wii U, but it's clear that perhaps they won't be doing as much software support as once planned.