I 've said it elsewhere. The Wii U will outsell the Xbone for sure. But the Xbone might not even sell 20 million units lifetime. So that isn't really a success indicator for the Wii U. When 3rd party support for the PS3 & 360 subsides, and the baseline of development moves to the PS4, it will be even harder for multiplats to release on the Wii U. Even now, many of the PS360 multiplats don't release on Nintendo's system. What do you think will happen in 2 years from now?
As it is, the Wii U could still reach 30m sales lifetime, but things would have been a lot easier for Nintendo, if the hardware they put in the box was somewhat more relevant with the present.







