There is so much room between these ranges, so I'll wait till we'll be able to narrow it down a little farther. Although Wii U doing 20-25 Million seems pretty set in stone.
And the market will stay as big/a little more a little less, you say? Try quite a bit less. PS4 will be the largest stake and the other two will fall quite short. Especially Wii U, obviously.
I'm not so sure that it is set in stone.... The wiiu is struggling like no other Nintendo console before it. I think Nintendo will be lucky to hit near 25 million. I have a feeling that the wiiu may only go as high as 15 million, as I think Nintendo will pull the plug earlier than they did with the cube. I love the wiiu, I just think it has absolutely zero excitement or buzz. The cube was loved by Nintendo fans, and had some great games pretty much from its launch.
The wiiu has great games, but they're so few and far between its pathetic. Smash and mario kart will give a little bump, but it won't be much, and won't last long. I can't wait for some of the awesome games coming for it, but, it has its reputation, and like the vita, it's a bad rep that makes people not want it, in my opinion. It will get to 10 million after this Christmas, and slowly sell it's last 5 million till Nintendo comes up with its replacement.
who knows, this fusion thing may come true, and replace the wiiu and 3ds at the same time.