I'm in AP Statistics and I'm also curious as to what the free response questions are going to be like. I doubt if they'll be that difficult (it's statistics, it's not hard material). If anyone cares to give an example of what one would be like, I would very much appreciate it.
My AP Chemistry teacher has given us a lot of practice with free response questions for the AP Test, and those are very difficult, but chemistry is much much harder than statistics.