We are not supposed to give definite answers to such specific requests for availability since things could change significantly before you will have an opportunity to reserve. However, You should assume that particularly for late Sep to early Oct time, when the 50th starts, that you will likely find it very difficult to reserve anything.
Think of it this way. December 31 is usually the highest single DVC demand night of the year. In 2021, it has already lost that honor to October 1 and the few days either side of it.