I get what you are saying and there is some validity. The Udraw series could work well on Wii U and 3DS where THQ itself doesn't need to make the hardware (they are still sitting on 1.4MILLION! units). They could simply make the game. It has some potential. Being the first to market with this type of game on Wii U will likely be very successful.
However some of your suggestions are very odd. Mario Udraw? Why? What possible advantage would that be to Nintendo? The Udraw license isn't strong, if they wanted to make a drawing game it would be cheap and easy and they wouldn't have to share the money with THQ. Generally speaking allowing other companies to touch mario has been because it was mutually beneficial. Mario and Sonic in one game? That's a double money maker.
A mobile version at $5 or $3? How would it compete with Drawsomething?







