Certified GKH Gardening Expert
It is difficult to predict whether a freeze-damaged plant will recover, but often, a plant will recover well even if it loses all its leaves.
The best option is to wait until spring or summer to see if the plant puts out new leaves and to avoid pruning until then. If leaves grow on only part of the plant, you can then prune back the dead portions.
You can also use this trick to see if it is dead: