Could reach 3M if properly advertised.

1.5M - 2.0M

Just for being pokemon no less than 2M, probably more if it's actually good

If it gets Splatoon like advertising, it will reach 6m......

Doubt it since NX might launch next year.

I don't see it doing that well (3-6 million? lol). It's a spin-off project that Nintendo didn't even develop themselves and has gotten barely any attention from Nintendo. Beyond that it's not 2000 anymore, you can't just slap Pokemon on any spin-off game and expect huge sales. 

If gets Splatoon effect > 5M

Normal Wii U Game > 1~2M

1.5 million, mainly because the Wii U, I think it will have a pretty strong showing if Nintendo puts a half decent advertising campaign behind it.

Yeah right now I'd say 1.5-2m. We don't really know that much about it yet either.

It's also in the name. Surely they aren't going to name it 'Pokken' in the west. Everybody would just think "Pokken, what the hell is Pokken?" Moreover, 'pokken' means smallpox in Dutch...

I cant believe some people are saying 5-6 million.
The Wii U is at 10million units sold, how many fighting games reach 60%+ attach rates?