Oops, I should have done some background checking before voting, so I undershot.
The big unknown is how much longer Wii U will be the current gen Nintendo console. If we're headed for a short cycle, then the number of millions might be in the low side. But if Wii U lasts until close to when PS5/ Xb TWO will release then it could get a decent number of million sellers.
I think I'll go with between 15 and 30 million, but I can't really get more precise than that.
I am pretty sure that any game released 2013 or earlier that isn't already at 1 million won't get to 1 million. There will be a handful of 2014 releases that will probably get to 1 million. But if the million seller list is going to get above 20 million it will have to mostly come from future releases.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
