Surprisingly, they are starting to bounce back. They might just pull through.
On the other hand, a beautiful smoke tree in the front of our house sustained significant damage. The tree was dreadfully overgrown, but we had never gotten around to pruning it. I am convinced that if we had kept it pruned, it would not have sustained as much damage. If the tree had been properly thinned, it would not have been so weighted down by the snow, and fewer limbs would have broken. Now, with the broken limbs removed, and some additional pruning to correct the shape, the tree is about a third of the size it was before. It is a bit sparse looking, but I hope it will fill in a little (but not too much!).
I am not very good at pruning because I always hate to cut off a limb that is growing - it just seems so cruel. Hopefully this experience will convince me that careful pruning is in the best interest not only of the garden, but also of the plant.