We'd have to wait till Sony put's out more of it's original flavors to tell :P If MGS4 doesn't push a jump start on the America's or if FFXIII doesn't spirit bomb Japan then we'd have a much clearer standing, as soon as people pick it up for whatever reason they're holding out for, then they'll have the incentive to pick up the other great titles as well for a cheaper price lol.
From 0 to KICKASS in .stupid seconds.