Probably some exclusive 60 minute mission or a character skin for a 3rd party game just so they can print "Only on PS4" on the box.
But seriously, I hope they announce one there but I dunno. Sony seems to be playing there cards very closely. Adam Boyes said there planning E3, Gamescom and TGS reveals now so Sony is not going out guns blazing with a lot of announcements at VGX. That show is mostly a 3rd party show for the most part anyways.
I think the only reason we got the teaser trailer for Uncharted at the PS4 launch event was just to keep fans talking about PS4 exclusives. They probably realize they have been lacking in full AAA anouncments for PS4 along with the Drive Club delay and Infamous not being out during the holidays. They had to give us something since X1 had more exclusives at launch.
