http://gamrconnect.vgchartz.com/thread.php?id=204883
The Wii U will sellest so littlest that the next one shall outsellest it.
In other words, I doubt Nintendo hasn't learned from at least SOME of the mistakes of the Wii U and will improve and sell more units than the Wii U.
Can't wait for The Zelder Scrolls 3: Breath of The Wild Hunt!