I personally hope they made the civilians smarter in regards to driving. All GTAs had in common the civis couldn't drive for stuff and would crash into anything then drive away. Hopefully accidents are more realistic. I'm hoping the same for police, fire, and ambulance. They would just drive hitting every car and building in the way. They would do more harm then good and it was hardly realistic.
I actually enjoy the terrible driving AI, particularly of Ambulances. It just makes me laugh so much when an ambulance comes to help 1 civilian and kills 3 on the way there.
But I suppose I'll like realism too. will be a bit upset to see that unintentional humour go.
I've preordered the special edition. Not the collecters with the bag and things though.