The only feature pool Disney specifically mentioned was SAB, so presumably the feature pools at the other resorts Disney is opening will be open, but it could just be that SAB is such a big draw in and of itself that Disney wanted to specifically note that it would be closed. We will probably know more once people start going to the DVC resorts/FW in a few weeks.
FWIW some people who have reservations at BCV have been informed that they will be able to use the feature pool at BWV which would lead one to believe that SAB will be the only feature pool that gets closed.