During Sony's press conference we heard Andrew House announce Grand Theft Auto V for PlayStation 4, with Rockstar's game set to appear on the new-gen platform this fall (and, we assume, on Xbox One too, and possibly on PC as well).
Interestingly it was also revealed that Xbox 360 and PS3 players will be able to take their GTA Online characters to PS4 (we're assuming that the same can be said for Xbox One, but we're still not sure of the official details regarding that platform). More details when we have them.