When my father-in-law died, three of his disfellowshipped adult children came to the funeral. There was quite a lot of hugging and crying by the active JWs.
The disfellowshipped ones came over to the house later for association (ironic, no), food and drinks. They hung out for several hours.
That was more than a decade ago. As far as I know, none of the active JWs have made any attempt to reconnect with their brothers and sister since. None.
Let's review: It's a cult!