My husband and I were just talking about this today. My jw mom has shunned me now for 26 years. The few conversations we've had were on the phone and involved my questions about family medical history and her hospitalization, (for which she refused to give me any information).
In the unlikely event that she would ever leave the Watchtower Cult and begged for forgiveness for the shunning, and even the abuse and dysfunction that she and her husband heaped on my brother and me as children, I may be able to be civil to her, but I could never trust her.
Quite frankly I don't miss her company, because our lives are so different. It would be difficult to have a relationship with her being a jw or not being a jw. The only thing I miss is having a normal mother, but there have been several older women throughout the years who have gladly taken her place.
It seems to me that even those who are part of a close jw family don't have relatives with your best interest at heart. Limiting a person's choices in career, education, medical decisions, and sexuality doesn't seem very loving to me.