Wii

So what you are saying is that it is just under Mario, the Wii Series and Just Dance? That's actually pretty good.

3DS will be down. Wii U will basically be the same. Price cut vs. Smash Bros. + Mario Kart 8 basically cancel each other out. 

Pretty good for a game. Not good prospects for something that is meant to turn around a system that successors to the 2D Mario, 3D Mario, Wii Fit, Mario Kart and Smash Bros sequels above it in the list have so far not done.

To improve the WiiU sales, all they need is a price cut.

Doubt it. I mean, there's only like 3 notable exclusives coming to the 3DS this year. Wii U could sell better than last year if Nintendo gives it a price cut, but I doubt it's make up for the 3DS decline.

No chance imo...3DS will fall by several millions while WiiU will be flat or go down/up by 10-20% at most.

Well i think wii u will be down mainly cos i always think it will sell better and never does

mario kart, smash and amiibo are evergreen products, they will keep the momentum. add variety of exclusives and a likely price cut, wii u should peak in 2015. 4 to 5 million.

last direct showed that 3ds will also have a great library in 2015, new hardware and amiibo exclusive to new also helps.
id assume it will be flat.

So, combined, 14M+

Easily a yes.
Wii U will sell more but 3DS may only sell about the same or a bit more to be honest.

Then you woke up dear sound of rain...Rationalize it!

Why ignoring that it stopped a 50% decline and surpassed dsi sales in the same time frame in Japan?

The underestimation of New 3ds/xl is strong here...