You have my sympathy reikizen, I just wouldn't go.
My family is completely ripped to shreds. My stepfather has three children from his first marriage who he doesn't see at all. We had "access visits" with them when we were all smaller but it just stopped abruptly. Even when his daughter wrote to him and begged him to be in her life he ignored her. One of his sons was killed in a motorbike accident at the age of 17 and he went to the funeral, but he had no contact with the other two after that.
My older brother and sister don't speak to my mother at all and haven't done for years. There have been various catastrophic attempts at reconciliations over the years - hideous Christmas which started with lots of false gaiety and ended with people screaming off down the road in taxis in the middle of the night, suitcases being emptied out of upstairs windows, gifts being flung back in faces etc. Now there's no contact at all.
My sister intermittently communicates with my dad but frankly treats him like crap and they hardly ever see each other. My brother refuses to speak to (or even about) my dad as well as my mother.
My sister and I haven't spoken since my wedding nearly 9 years ago. She knew I was in hospittal fighting for my life when I had ds1 and that he was in SCBU fighting for his - she was in phone contact with my dad - and her attitude was "well if she wants to be a brood mare" and "shut up about her, I'm sick of hearing about her". She's hasn't seen my children (6 and 4) and doesn't want to.
my brother and I very recently started re-establishing our relationship after years of non-contact (my mother made it a condition of my relationship with her that I not contact him, as it would be "disloyal". I was my mother's only support and confidant for years after the older two split and a couple of years ago - after yet another huideous violent blackmailing episode - I finally cut her and my stepfather out of our lives. So my kids have no relationship with them either. My brother's relationship with me is very shaky and prickly, at Christmas I almost lost him because I ferried a message from my dad which my brother thought was a terrible thing to do. My brother doesn't speak to my sister either, and we have younger siblings who we don't have contact with because my mother has them by the scruff of the neck.
I fucking HATE our family and the shameful scrapyard it has turned into.
sorry for hijack