I had one of those in a cedar tree in the back yard last summer. I figured I'd wait until winter and go back and get rid of it while they were hibernating. When I went to check on it, it had been ripped open and all the cells were empty. Kind of looked like woodpecker damage.
Actually the bees remaining in the nest are all males and they die while the queen flies off and finds maybe a wood pile to spend the winter in. In the spring she comes out then starts the building of a new nest, laying eggs that will hatch into the males that will help her build it.
It's birds that shred the old nest looking to eat the dead bees.........