If you love GTA you need to know that, Rockstar stated when GTA IV released "GTA 1 and 2 also the London games are the 2D Universe/Era, Then GTA 3,VC,SA is the 3D Uni/Era, which now leads us to IV and V which is the HD Universe. Rockstar will never revisit old stories or characters because of this rule they've created. Can't believe alot of people who claim to know alot about GTA doesn't no this at all
It explains why the cities look different from their past counterparts and only radio characters exist in all universes for some reason like Lazlo in V. if you're wondering why Ballas and Families traded Neighborhoods, well there you go alternate universe in future