The Magic Kingdom is the host park for Magical Gatherings. MGM did 100 Years of Magic, so it is either Animal Kingdom or Epcot. Epcot's Wand is going down, which is great if they are planning on a new Icon, Epcot's attendance is up drastically, nearly every pavilion at Epcot will have been refurbished by 2005, and several Epcot CMs along w/ Al Lutz seem to think Epcot will be the host park. Epcot is also the park that Disney has been the most disappointed in with attendance (it is still rather close to MGM, which is 7 years younger than it), and would love to boost its attendance. It is the most likely bet for Disney, even if MK makes more sense.