It's gonna be a banger. Best open world developers. I remember when GTA 5 was launched, it was amazing, for it's time. But then later I started to miss something, and it was GTA IV physics engine, the ragdoll physics. The cars and bikes in GTA IV have weight to them, GTA V is just arcady. I am sure it's gonna be better this time.
GTA V was designed with PS3 compatibility in mind, which I think severely limited its possibilities.