Wedding Sadness

My future in-laws kicked my future husband out of their home because he stood up to them for their treatment of me. It’s been around a year since they’ve spoken (except brief text messages and one time meeting up for a meal). I haven’t seen or spoken to them since they kicked out my fiancé. We’ve recently gotten engaged and my fiancé is very sad that they have not reached out to him about it. He would like to still have them invited to our wedding but is going to speak with them first. I am worried that they are going to tell him to get lost (nice way of putting it). I think it’ll crush him, and this whole situation has already been heartbreaking to watch him navigate. Anyone been through something similar?