October 8 is the beginning of the Columbus Day Holiday weekend. There are lots of schools who have Columbus Day off and IIRC, some of them also have a fall break at that time since they start school in mid to late August.
My advice is to keep the waitlists going until at least the 31 day mark.
If saving points is more important than the resort, I would change at least one of the waitlists to either SSR or OKW. Both of those resorts are larger than AKV & BWV. BWV will be especially difficult due to the Food & Wine Festival. OKW is less points than SSR so SSR is probably the better bet of those two. If AKV sells well, there will be more inventory added and that would help to clear some waitlists. Personally, I would choose to waitlist AKV (Kidani) and SSR for the best chance.
Sounds like someone backed out on you. If so, you have my sympathy. FWIW, you do know that as soon as a waitlist clears, those people will tell you they can make it after all. Murphy's Law!
Good luck!