The 2009 rates will be released sometime this summer. The AAA rates may get released at the same time, or it is possible that there could be a bit of a delay and they could get released a bit later. That did happen on our last trip in 2006.
If you make a room only reservation now, when the AAA rates come out you will need to call back. If it is a room only reservation and the AAA rate is available for your resort, they will just apply it to your existing reservation.