It's pretty clear to anyone being realistic that the Wii U has fallen far short of its predecessor and will essentially be the 8th gen's GameCube, but that's not the only measure of success for the platform.
All the Wii U has to do is remain relevant by simply staying on the market and selling well enough to produce enough software sales to justify continued software support by Nintendo.
Would end consumers like to see more third party support? That should go without saying, but it shouldn't be taken as a given, based upon the typical sales performance of third party games; they simply sell better on other platforms. As always, the best reason to buy any Nintendo hardware is for Nintendo's own games.
As far as profitability goes, the Wii U really only has to break even or show nominal profit (which Nintendo should be able to make from sales of its own titles on the platform) to justify their next console. Even if the Wii U is a minor loss, it's not going to force Nintendo to exit the console business.







