It is true that next year will be the test, but having said that, the crowds at the hotels are way down! From what I am told, many hotels are operating on 20-40% capacity. You can notice the lack of people on the beach.
Timeshares are a different story, they are holding their own as their units are already bought and paid for. This may be where we many see a decrease next year as 2009 trips had already been planned and flights arranged.