I'm guessing that final scene was just filmed in the last few days. Certainly that news would have leaked out if people had known for more than a few days. I had seen a post earlier in the day that Steve Burton had tweeted something about his last day of filming at DOOL this week but didn't thin anything of it -- he has left before. I had always thought he'd be back at GH one day but wasn't sure it would be this soon. I was so excited that I couldn't fall asleep last night (clearly I need to get a life!

). I cannot wait for him to start appearing again. Statements from GH & Steve Burton over night that it's official and not just some kind of a tease (I wouldn't have imagined they'd film that scene and not have it be official....but you never know). I think he's my favorite GH character ever.