Well the wii u could have suppoelrted crisis 3 but the devs didn't think it would sell well and they didnt have a use for the tv that is stuck in your controller. So they didnt do it. So if a hugely popular game franchise wasn't ported over to the wii u when they could have done why would a developer release a game for the wii u that nobody knows if its good or not? People liked crisis and crisis 2 which is why they made so much money of preorders. No body knows if destiny is good or not so they don't want to tale the risk. To make the same ammount of money of the wii as an xbox 360 or ps3 about 1/16 of wii owners would have to buy the game. Compared to ps3/xbox 360 were it would be something like 1/32. Its all about sales.