Update 2017-11-03: Well, this prediction has gone wrong all the way. While most of the things I hoped for to help the WiiU happened (price, competitors start a lot later, Miiverse, Virtual Console, eShop) the sales weren't pushed by that. The games hadn't the impact I hoped for. Even more: Just Dance to this day sells best on Wii, not helping the WiiU. I wasn't alone, you can see in the thread that most people expected something like that. And look in the poll, the current standing:

Original post:

I predict the WiiU will sell at least 50 million lifetime. It may sell 100M or even more, but at least 50 million.

That may not sound very bold (and probably isn't), but I don't have the feeling I can predict more until now, as I don't know about the price and other stuff. I'm not even know, if the WiiU will be the winner next-gen, and for a loser 50 million are much. And I say, it will sell 50 million units, even if PS4 or XBOX-next will win the next-gen.

Things that are in favor of this prediction:

• WiiU-pad allows for some new ways to play 
• classic-controller
• good (but not excellent) list of 3rd-party games at the launch
• WiiFitU
• NSMBU
• Just Dance 4
• headstart into next-gen

Especially these 3 games I mentioned will help to give the WiiU a good start and a momentum, that will even guarantee for more sales as the competition has joined the game.

Things I hope for, that would help to reach that goal:

• price at launch is <300$/€
• Nintendoland is a pack-in (like Wii-Sports was)
• more games will be announced, so that every month next year at least some semi-big will come out
• Sony doesn't manage again, to kill a competitor only with rumors of the upcoming device (like they did with the Dreamcast)
• the competitors don't release earlier than Q4 2013 their next-gen-consoles
• Nintendo starts Mii-Universe (or whatever it is called) not later than Q1 2013
• Nintendo starts E-Shop not later than Q1 2013
• Virtual Console
• can transfer download-games and virtual-console-games from the Wii
• Nintendo doesn't kill off the WiiU early, like they did with the Wii

So, what do you think? How much will the WiiU sell lifetime?

Sounds reasonable. I'm thinking 70 million lifetime myself.

i thing will heave good lifetime

Nintendo r too secretly... and Wii U heave more & more to show

1 place in next gen

AFAIK each generation has expanded in terms of marketshare.

Wii U will probably sell 80million at least if it is in 3rd place. 120m if it is in first.

At best similar to PS360, at worst similar to N64.

I say 54.8 million.

If you're going to make a prediction thread - make it bold! I'd say upper predictions right now place the Wii U around 60-70m.

I'd go with 65m. 70m if I was feeling lucky.

EDID: Egads! My ballsy predictions are falling lower than most everyone else's!

I'm thinking it's gonna be first in the next gen, I'd said 90m?....

Although I've been with nintendo since 5-6 years old and I'm now 26. I've been with them since nintendo, I feel the launch titles for this system are system pushers. Nintendo land will be bought by millions of teens and families potentially reaching 15-20 million and will be a system seller. Pikmin I'd say 3-5 million more for hardcore. Mario bros U 10-15 million. So just on these three games the Wii U could hit 20-25 million. This is the best launch line up for Nintendo in a while (if you don't base good games on movie-like graphics).

It's exactly my thought. It may not the lineup a core-gamer wishes for, but there are some big sellers. I don't think Nintendoland can sell much alone, but it can be a great pack-in. WiiFitU and Just Dance will also move hardware.

70 million by 2019(new Nintendo homeconsole)

Someone quote me so future generations will know what Turkish predicted in 2012 as I cannot guarantee not getting banned.