Could PS3 continue to outsell 360 yearly from here on out? Sure, its very likely considering PS3 hasn't even hit the $200 barrier yet.
However, will that allow PS3 to completely beat the 360 LTD? At one point I was certain it would, now I'm not so sure. I'd bet that the 360 will continue to sell well for the remainder of this gen which ends in 2012. I'd also bet that at that by 2013 both PS3 and 360 will stop being produced with 360 still leading by a couple million.