Consumer rebadges of old cards (77xx, 78xx) based on the 6000-series VLIW4 arch. coming out first, new 79xx series cards based on totally new architecture coming out Q4'11 or Q1'12.
Also a 7990 "New Zealand" dual gpu coming spring next year.
28nm process and later shrink to 22 or 20 which means less power consumption, potentially smaller cards, more performance per dollar.