Simple question: How much do you think the Wii U will have sold total by years end? What kind of impact on sales do you see big hitters like Super Mario 3D World and Sonic Lost Worlds having on sales among others? What kind of holiday marketing are you expecting from Nintendo? Etc etc etc
For a bit of reference, the Wii U is actually only 1.1 million behind the 360 aligned at this point in it's life, and that ended the year with 8.1 million. Considering Nintendo consoles always do better than the competition come the holidays, it doesn't seem like too big a stretch to assume it could easily match or surpass that figure.