During most of the year the hive is in balance with all the bees having their own work to do. The queen is not locked into the hive in any way and is free to leave if mother nature tells her to. Spring and early summer is swarm time and if they find a home on their own or are caught by a beekeeper, their chances of survival are as good as they could be. They also could swarm toward the end of summer, although less likely, and their chances for survival in PA is minimal.
Keep 'em in the ten ring