I expect anything around 450k-490k when in comes to retai sales, so with that alone I don't think it can pass the 500k mark in FW, BUT seeing how this game isn't that big in how much it takes in the console's memory, and it has a 10%(it was that amount, right) discount in Europe to those that played in the Testfire and pre-loaded, I can totally see it passing the 500k mark when digital sales are included, probably something around 510k-520k*
*That is if it ends at the 490k mark very close to it, if not 500k with digital would be the only way, unless it is pretty huge digitaly
COMG guide to points: 1 point = Raging. 2 points = Beasting. 3 points = Tearing it up. 4 points = Berzerk. 7 points = Rampage. 12 points = Burst. 15 points = god mode. 20+ points = DIVIDING BY ZERO!!! 40+ points = Youkai (originally Pokemon).
-1 = Negabeasting. -5= NegaRampage. -10 = NegaBurst
