An airport that is massive and you can fly sick planes but you can actually do flights and go inside planes to look at their cockpit and cabin, and also the airport interior should be fully designed! Appropriate police, for example if you speed pass a red light a right caution is issued instead of getting arrested straight away as that pisses you off and also if you accidentally crash or nudge even you car into a police vehicle you shouldn't be arrested as that is not a crime if done unintentionally. You should be able to make cars a convertible (as seen in the trailer) whilst customizing them. You should be able to indicate at traffic lights when driving and like planes their interior should be designed acceptably well. Police missions, like in many other previous GTA's should still be continued as they were halted in GTA IV. You should be able to dress like a police officer and arrest people at you content. When you exceed a certain number of wanted stars, the army should be deployed making it a criminals haven. Also if you are wanted you should be able to hide and escape cops because in GTA V if you go to a deserted place, police end up spawning either behind you or in front of you. This is not realistic my friends, not realistic! This is my wishlist for GTA V (I have more to share but frankly cannot be arsed) and lets hope they are in the future Grand Theft Auto!