That whole thing at the end in the elevator - her in her "prom" dress & George in uniform. Maybe it'll be like Meredith when she came back to life - with Denny showing her the way! i hate waiting for the season to start up.
I think George will be gone for real when the season starts up again and maybe Izzie might be staying cause if they kill off both Izzie and George Grey's Anatomy will never be the same again =( I love the show so much and I can't wait till the new season starts!!!