Awakening has sold 2m+ globally. Retail + Digital.

Definitely possible with Fates.

I don't belive the ame that much, then again let's not underestimate the power of fan service.

yes. 3M seems a bold prediction, for me 2.5M would be great. lets see if it can really reach 3M. If the west, sells great, it is certainly possible.

Depends what Nintendo counts as a sale, digital-wise. The e-shop version of FE: If costs 5,000 yen and gives you your first choice of storyline then the other two storylines are both 2,000 yen each. If people (like me) buy all three, will that get counted as three separate sales? If so, I can see it going over four million, maybe five and six is veery unlikely, but still possible. If those aren't counted separately, then I'll wager somewhere around 2.5-3 million.