I thinks its:
The Crew
- No Rated M/Hardcore
- From Ubisoft (biggest wii u supporter) - they also said :"watchdogs will be our last hardcore game for wii u" -> Tantalus is porting a "not hardcore game"^^
- Its pretty Nextgen
- There is a xbox360 version - so its definitly possible on wii u
- Its a AAA titel thats not hardcore/rated m (there are not many)
- Ubisoft also developed watchdogs in a different studio in india and release it some time after other releases
- bigger as Me3/Deus Ex
- Ubisoft is one of the biggest publisher
Everything would fit.
To be honest, even destiny would be cooler as the crew (who likes this game!?^^)