I wouldn't hold my breath waiting for an email as I doubt dvc member services will send you one.
I am at Jambo staying on my own points w/ 2 reservations, one for the end of Nov. then moving into a bigger villa the first week of Dec.. I have not gotten an email for either reservation, although some one up thread or in another thread got an email on an early Dec. cash room reservation.
My guess is you won't get an email as your rented points are DVC and that email would come from member services most probably to the owner of the points rather than you, plus I don't think member services alerts people about pool closures.
One exception was when they took a lot of the WL villas out of service to build the Copper Creek cabins and member services did reach out and move people into other DVC resorts (that was a fine mess, btw,) but they had to move people because the villas they were scheduled to stay in were closed down for Disney's construction so they had to find them new places to stay, so they really had no choice but to be pro active.
W/ DVC you'll own those points for a long time and presumably be returning to your resort many times, thus the occasional refurb. isn't as big a deal, unfortunate that renters of DVC points are stuck w/ the result, but DVC owners are a 'captive' audience so less need for guest recovery, I guess.
You could speak w/ the owner of your points and see if they are willing to try to get you into another DVC resort - although there's probably not a lot out there at this late date.