it will drop to 1 or 2 million, but 360 lead will continue to decrease.
exclusives will only grab current owners.
check ME2. no real bump on console sales.
same will happend to Halo, Alan Wake, etc etc.
But the same wont happen to GOW3, FFXIII or GT5 since they are the first time they will appear on PS3.
So, this ones will be system sellers. The ones from 360 not.