Quality Quarterbacks that could hit the open market next year (my opinion): Brees, Cousins, Garoppolo or Brady, Alex Smith, and AJ McCarron. Would not be surprised if the APY for quarterbacks goes down.
I think the chance of Brees leaving for a run with another team is probably very close to zero. From what I've heard in his interviews, he's taking it year by year. He'll do a self check before beginning another season. When he feels like he can't keep the commitment, he'll retire. I don't think he wants to move his family. I understand that. I've been offered twice what I make now, but I'm not moving my family, and I'm not leaving them behind for long periods of time. I think Drew gets to call that shot. I don't believe our organization would be willing to move him against his will, and I seriously doubt that he's going to ask to be traded or make us out-bid anybody. I imagine it's going to be one year deals for him the rest of the way... with the Saints.