I predict 13 million units this year with a lot of big exclusives.
I think sales will take off late next year when it gets $199 price tag. Probably 17 million units in 2011 with GTA 5. Then declining to 12 million in 2012, 10 million in 2013, 8 million in 2014, 6 million in 2015 and finally 3 million in 2016.
Total: 102 million