They wont update GTA for ps3 again, if so its gonna be a small update.
So far GTA is really messed up on ps3, their servers is shit and they know it.
Rockstar themselves announced that there would be no more updates for PS3 on rockstar newswire.
If you want anything added to the game, start coding
Or donate to those who try to give us "dlc's" like amy's halloween or beastrealism etc etc - they try to bring life to GTA