I'll say it's possible should the Switch take off really well, 8-9m total is my guess with both versions together.
Lol at the 4 million...
Bet with PeH:
I win if Arms sells over 700 000 units worldwide by the end of 2017.
Bet with WagnerPaiva:
I win if Emmanuel Macron wins the french presidential election May 7th 2017.