With the PR today about 7M *SOLD* according to charttrack, GFk, & NPD, the absolute minimum the PS3 version is at is 2M, most likely > 2.25M.
Even if we assume that 65% of the sales have already been had (in the first two months, which NEVER happens), that would give us a projected total of ~3.5M for this GLS.
i dont know if this was mentioned yet or not, but the game hasn't come out in japan yet. it's due out at the end of the month. those should account for a decent amount of sales in my opinion
1