It was announced on RAW during a backstage segment with Mr. McMahon & Jonathan Coachman that next week on the Raw 15th Anniversary show, Hulk Hogan, Trish Stratus, Mick Foley, Eric Bischoff & Stone Cold will all be appearing. Hogan is likely some sort of spoof. Austin and Foley will be there live. No word on if Bischoff or Trish will appear live or via video.
The entire McMahon family will also do a family portrait with Hornswoggle on the show.
They aired a promo in the Albany, NY market advertising Edge vs. Batista in a No DQ match, Matt Hardy & vs. Finlay & MVP, and an appearance by The Undertaker. This is for the December 26th house show, the day after Christmas. That lets you know where things are headed.