I'm betting since they released the public discount earlier this year (1 month earlier than last year), they will release the AP discount very soon. I am waiting to see what they offer for Oct 25-29. I am only expecting 5-10% more than the current discount, though.
If you look at how many rooms are available without any discount, there are a lot. It is just the discount that is limited. There will probably be a decent selection of rooms under the AP discount.