Easy. Its either going to be Killzone 3, InFamous 2 (Since it was announced right?) or Resistance 3.
Jak And Daxter won't happen, thats obvious. Haze 1 was not received well, so i doubt a sequel for that. LittleBigPlanet 2 is not happening anytime soon, and tbh, theres no need for that, there is still plenty of DLC being released.