Not so sure about WDW, but if you are planning on traveling to Atlanta anytime soon, beware, they have doubled their conference/convention business in the past month due to relo's from NOLA. I was trying to book a room at the Atlanta Airport Hilton and there are just none to be had. I called the hotel direct and inquired if there were any large blocks and when they might be released, and was told that they ahd picked up several conferences during my stay that have them FULL!
I can't imagine that WDW didn't pick up some as well.
Anne