FWIW, the cancellations are beyond 10/16. Today DVC cancelled my 10/22 arrival at the Grand Cal.
EDITED TO ADD: I later spotted your edit on Post #1. I see that you've already stated that DVC reservations beyond 10/16 are included in this week's round of cancellations. Thank you.
My 10/22 reservation was there this morning, but is now showing cancelled. Sigh. Another one cancelled. Really trying so hard to use up these last 2018 banked points before they expire 11/30.