With the recent rumors that Typhoon Lagoon will be opening soon, these signs may point to Blizzard Beach closing, though there hasn't been any announcement about that one way or the other. It is a bummer that it is affecting your ability to plan your vacation and make patio reservations.
It would be nice if Disney could figure this out 60+10 days in advance to let people make reservations during their booking window. Even though I'm not planning to reserve a patio, I was planning to visit BB the afternoon after visiting DAK in the morning. But if BB will be closed and TL open, I'd rather do TL on an afternoon after visiting Epcot or DHS in the morning, and that will mess with the dining ADRs I've made.