Jehovah's Witnesses only please?

Okay my wedding is coming up in a few months and i want my nephew to be the ring bearer. The problem is my older brother is disfellowshipped and he is his child. I really want him to be a part but my fiance and i aren't sure if we can. I don't want to stumble anyone in our congregations or anyone that might be at the wedding. Would it be wrong to include him in the wedding?