I would be shocked if DVC did not extend 2018 banked points for August, September, and October UY's.
I am waiting for an announcement, but if nothing is announced by early June, below is what I plan to send to member satisfaction.
2018 Banked points should be extended for August, September and October Use Years
For the same category of points, there should never be a situation (even this unique situation) where points from a later Use Year expire sooner than points from an earlier Use Year.
I understand the resorts were closed when the 2018 banked points for the June Use Year would have normally expired, and it was great you extended those points. If you had extended those points so they would now expire on or before July 31, 2020 (the day 2018 banked points for the August Use Year are currently set to expire) then it would have been acceptable not to extend 2018 banked points for August or any later Use Year. However, since you extended the 2018 banked points for the June Use Year until November 30, 2020, points in that same category (2018 banked points) should be extended to at least that same November 30, 2020 date for the August, September and October Use Years.
A 6-month extension would be even better, but at a minimum they need to be extended to November 30, 2020.
P.S. Hopefully you will announce a decision before June 16th, since if the 2018 banked points for the August Use Year are not extended, they will need to be deposited into RCI by that date to avoid restrictions in RCI.