The 3rd party support of the Wii U seems to be weak already IMO.
Late ports of Xbox 360 / PS3 games that are more than a year old won't do the trick.
Zombie U and Rayman are the only 3rd party titles that might have an impact and are really made for that console.
Bayonetta 2 was due to a payment from Nintendo, so I call it 2nd party.
I think the Wii U is keeping Xbox 360 and PS3 alive actually.
Imagine not having GamePass on your console...







