Assuming I survived, the KH would be one place I would possibly go by to see if my children survived.
But if you mean "return" as in be an active JW again, no fuckin' way.
It's a cult. In fact, it's a high-control authoritarian cult run by a group of ignorant narcissists that haven't the clue evolution gave a donkey and don't care how many lives they ruin in the process.
No amount of nuclear detonations can change that.