It doesn't sound like the whole mall is getting shut down, I think it's just a few specific stores and I assume it's due to some long-deferred maintenance issues in a certain section of the building.
Interestingly, checking the zoning map reveals that this area is already zoned for mixed use, so redevelopment isn't too far off anyway. As long as they don't spring for yet another seniors' living block, it will be an upgrade for sure.