A scenario when Wii U sell +5 million this year.

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Mummelmann said:

It's too late for anything like that; consumer products that are moving really, really slowly don't suddenly become a lot more popular simply for being cheaper; if there was potential for a 5 million selling year we'd have seen signs of it in the year where Mario Kart and Smash released. It was the same with the Wii's price cut once it had started to slide; it did nothing to put it back on top and the fall continued. The Wii U is quite simply not a popular product and this is due to its design and aim (or lack thereof) and not the price tag. Lowering the price will help any product; it will not produce miracles.

Has everyone forgotten that the cheaper model of the Wii U is/was the one that sold the least by far? It has accounted for a very small portion of total sales and actually sold so few that there are still some in circulation despite no shipments in ages and even being outright discontinued in some regions. Have we also forgotten that the Gamecube was 99$ after only a couple of years on the market?

Price was never the Wii U's main challenge, whoever hasn't realized this by now, simply never will. Besides; the last thing Nintendo needs now is losing more money on the Wii U, they should focus on the 9th gen and squeezing some gains out of the 3DS instead. Their best bet is a comeback in the 9th gen; which might very well be possible, but not if they don't reinvent themselves completely.

This post is so spot on. 

The Wii U at $299.99 is a reasonable price as is (considering it even comes with 2 free games) and is the cheapest of the "new" consoles. If people really wanted one they'd be buying one. But they're not, they're buying the more expensive Playstation 4 or XBox One instead in droves. Mario Kart, Smash Bros., and Mario 3D World have not shifted that dynamic one bit. 

I think it's fair to say the formula of just relying mainly on Nintendo franchises and pushing a family friendly style console just doesn't get you any more than 22 million-ish or so. The GameCube was $99.99 for the entire second half of its lifecycle and it still couldn't crack 25 million. People still overwhelmingly chose the Playstation 2, even kids.