Sony revealed that Grand Theft Auto 5 will be coming to The PlayStation 4. A trailer was shown that was mostly just setting the scene.
GTA 5 was released in 2013 and it's no surprise that it will be on the newer consoles. No news of it coming to the Xbox and maybe PC, obviously, since it was announced at Sony's Press Conference but I'm sure we will learn soon. It's safe to assume that it will appear on more than just the PS4.
Update: Rockstar have conformed the game will be out for PS4, Xbox One and PC this fall.