People are still thinking that I believe it won't run better and is just a cheap port? There is no doubt it will run better but I'm just saying the trailer has a bunch of bullshots for the next gen consoles and a bunch of shots amplifying where last gen consoles fall short. They are making it look better than it will actually look. Don't misconstrue that as "the game wont look better than last gen", it will look better, but not as good as the trailers and bullshots make it out to be.
Mind you, that PS3 spinoff of the trailer was USER MADE. Of course they couldn't exactly do it accurately, but he tried.
You can obviously see much much more changes. If you look closely, everything isn't stuff. The console in the cars work, and it looks much better. There are more cars on screen. There are much more people on screen, as well.
That's what they said about Watch_Dogs too 
The PS4 wasn't out though. Sure, they lied, it was a dev-PC that did it, but this isn't Ubisoft.
This is Rockstar. They wouldn't lie, and this is the PS4 version of GTA.