I think they're needs to be a Character Switch Point in Paleto and maybe another in Sandy or the City. It is just annoying having to drive all the way to the airport. It would be cool to keep some more roleplay in Paleto or Sandy.
I also think you need to be able to create a 3rd Character. Just an Idea because I want to be able to have a criminal character, and ems character and maybe a journalist or just a casual Civ character.
Just some ideas I have gathered over the last couple days