I'm pretty sure the best days for the Wii U are already over. There was a lot of marketing (with many many TV ads and stuff) going on in my home country but still, nobody really cared for the Wii U because it lacks appeal. If you already own a PS3 and/or an XBox360 then you really don't need it. While the old Wii was a huge success due to the new controller system, the whole idea behind the Wii U with it's tablet is anything but interesting. So neither the core gamers nor the casual gamers will fall for the Wii U. Even new games with big names won't really help.
That's why I say Vita will sell more in 2013.
Even though the handheld/mobile market is highly competitive it still has a chance while the Wii U is simply the wrong console in the wrong time. It lacks the potential of the Vita.










