I hope the next GTA will have Destruction Physics (blow up the cities, ground)

Also I want to be able to roam a whole country,

most realistic crowd AI,

seamless indoor to outdoor integration,

extended sky limit (like Flight Sim X can fly to ionosphere)

combine Cry Engine 3, Dunia Engine, Geo Mod 2, Euphoria Engine 2, Overgrowth Engine, Havok

super cars

flying

huge 500ft monsters (in MODs of course)

and last but not least undersea exploration.....

that will be the best GTA ever