S.Peelman on 13 August 2013
Wonderful 101 really is a wildcard here. There's nothing really to predict sales by. It could flop, it could be a sleeper hit. It'd say sales are 1m +/- 70% 
.
And to be honest, the Yoshi game they showed would've sold like, 4m if it was on Wii. So even if it ends up doing half of that on WiiU, none of the others are going to get close to that. Because we're now putting numbers behind them, I'll repost my list with some (lifetime) numbers:
1. Yarn Yoshi (2.0m)
2. Sonic Lost World (1.3m)
3. X (0.9m)
4. Wonderful 101 (0.3m-1.7m 
)
5. Bayonetta 2 (0.6m)
6. Rayman Legends (0.2m)
