I'm glad I read this thread! I was wondering the same thing!
DH and I are going to WDW Oct 18th - 23rd. The first 3 nights we are staying at Kidani, standard view, the last 2 night we are staying at SSR. We are wait listed for 2 things, all 5 nights at Kidani Savannah view and also the last 2 nights standard view at Kidani!
The MS CM I spoke to told put the waitlist until 7 days out and told me to keep calling to check. I've called every 3 days or so since I changed to the 3 days at Kidani from our original 5 nights at SSR.
I'll keep calling and checking right up until the end!