I still believe Moon Knight's going to come in at the last minute and put a bullet into Norman.
The bullet won't kill him, but it will send him over the edge therefore exposing his lies to the general public.
The Dark Reign ends with Norman in disgrace, and the Avengers charter back to normal.
Tony then returns to lead the Avengers.
Within a few months Norman returns to the Spider-Man books, as the Green Goblin, deadlier than ever.
I have a feeling that it will be the rebirth of Captain America, and he will bring Thor and Iron Man back together to bring down Ozborn. But when this happens Ozborn will trigger The Sentry to go competly nuts. Thus starting the next big "Event" You now have all the fighting heroes still at odds over Civil War having to ban together to take down The Sentry.