As we already know, our protagonists won't be all playable from the start (http://www.gtaforums...howtopic=566066). Well, after watching the official trailer I came to a conclusion.
Well, Trevor is obviously not one of the first playable protagonists. Why? Because he says: "I'm back in town baby!" on the "Trevor" trailer.
0:16 - 0:18 - "I'm back in town, baby!"
So we're left with Franklin and Michael. Maybe we start with both of them playable. That was my guess until I watched the official trailer. At the beginning we can see Michael relaxing at home, near the swimming pool. Franklin is talking to him. He asks Michael if there's something he can do for him. Michael says "I'm retired".
0:09 - 0:13
Well, Michael and Franklin did a job together in the past, so maybe Michael decided to retire immediatelly after that job. When he came back to the "game", he decides to introduce Franklin to Trevor.
So our first playable protagonist is Franklin. The part which I mentioned (Franklin and Michael talking near the swimming pool) is probably the first miossion of the game. Just like other GTA games, we start as Franklin in the hoods, then we grab a
Then Trevor comes back to town and decide to join them, around the 10th mission.