I would be really surprised if WatchDogs on WiiU manages to sell 500k LTD.
350k LTD is much more likely than 350k first week.
Lets say 60k-80k first week, 180-200k untill end of the year, 250-300k LTD.
Why should anybody wait for a poor port (i assume it will be one) when he can already play the game on another console right now?
Why should anybody buy a 59€/$ game for WiiU, which he can buy for 19-29 on PS4/XOne or PS3/X360?
I think it is the absolute minority of the people, who own ONLY WiiU and neiter PS3/PS4 nor X360/XOne.
And from these take only the people, who are interested in open world action games.
This is the audience for the WiiU-Version of Watch Dogs and these are for sure not even 500k people!
Even if it is a good quality port, it will experience the same trouble as NFS:MW on WiiU.
Its half a year late and nobody then cares about it anymore.
But there is also one "good" thing about it:
It allows Ubisoft to complain that games do not sell on WiiU even if they put some extra effort into it.
And for sure they will complain!
EDIT:
Oh, i forgot one thing by the way ... Ubisoft will never never ever make extra advertisements for the WiiU-Version of Watchdogs!
