I imagine if one does return to Jehovah, it might involve getting DF'd first.
We know a couple who did return so they could get their family members to speak to them again. She was DF'd when she cheated on her elder husband and married a former JW guy that she dated when she was a teen. He hadn't been to a meeting in 25 years.
Her former elder husband died suddenly in his early 50's and she was scripturally free. Her kids wouldn't speak to her until she was reinstated so she and her former JW husband tried to make a come back but he had to be disfellowshipped and reinstated first because when he wasn't a JW, he had been married and got divorced and wasn't scripturally free.