I think GT6 is a possibility, since nothing has yet been stated about it, including at the PS4 reveal.
LBP3, not too sure about. GoW, inFamous or a new Uncharted entry for the PS Vita is also possible.
Beyond that, a batch of brand new IPs is probably a safe bet.
Either for PS3 and/or PS4, I hope to hear about more excited new IPs coming to PSN and/or blu-ray.
Would really love an "Uncharted 4" announcement. (since TLOU is right around the corner.)
Not that there needs to be anything to show, but just a generic temporary logo and a "Yes, it's coming."