It's the very beginning of a handheld generation, yet high scores aren't being dished out at all, really. Apart from one fifth-gen remake and one sixth-gen remake, both of which got 94 :P
I reckon TLoU, BioShock & GTA stand a chance of getting decent metascores. Then again, it only takes one or two reviews from sites like QuarterToThree and the whole thing is dragged down!