I don't think the fishery will benefit much from closures over the long haul, but I sure bet the fishing will be way better than average for a few days once they reopen! The high water on the other hand could be a great thing for the fisheries. Good spawns and lots of new habitat even for a short time will be a welcome shot in the arm for a lot of lakes.
"Bragging may not bring happiness, but no man having caught a large fish goes home through an alley." -A.L.