i say 5.
halo 3 is at 11 at will likly finish at around 12
MW2 is at 11 something and will likly go past 13 million
black ops will be close. before i thought it would only do about 8.5-9 but the game looks better then i thought and it might actually have a decent story unlike every other call of duty game. and the multiplayer looks good so i say it will hit 10 million, but barly 10.5 tops
reach is a given. its outpreordering halo 3 and MW2 i dont think black ops will have much if any effect on its sales( did MW1 make halo 3's legs look bad no) and halo isnt on the downside of its life as some say. its pre-orders and odst's(it will finish with like 6.5 million copies sold. thats amazing for a full priced expansion) sales prove it. i could see it doing anywhere from 11m-14m
kinect adventures asuming it gets bundled with every kinect.
i dont think GTA4 or MW1 will get there. if gears 3 is amazing it might hit 8 million. i dont think MW3 will be ready by 2011 and even if it is it probably wont be as good as MW2 and wont have the time to reach 10 million. xbox 3 will probably come out 2012. same with GTA 5. if it comes out by next winter i think it might but i dont think it will be ready till early 2012 when the nextbox is about to come out.
Halo MCC will sell 5+ million copies(including digital)
halo 5 will sell 10 million copies(including digital)
x1 will pass ps4 in USA, and UK.







