Family is wanting to get together at our parents home; may be hard. Having get together's at our parents home when they no longer live there may be hard on them. Once the get together is over, they would return to the nursing facility where they now live.
Have they changed interior & yard so that is not the momma daddy museum?
If so, and parents know or knew this happened, I think it can be done. I moved my mom to IL and much of her bedroom, LR, DR moved with her. Goodwill & garage saled most of the rest. Left a few things to have a crash pad. When I would come in to visit mom & deal with property, I would take her to her old hairdresser in the old neighborhood where she would spend the better part of the afternoon. hairdressers daughter would often bring mom from the salon to the old house on her way to get her daughter from school. Mom was ok on being at the house. She had moved on emotionally from the house. & it looked very different from when she lived there (50 yrs too). It can be done but the house has to be visually different & parents & you moved on emotionally too.
I would however be concerned with siblings & in-laws getting all maudlin & memory triggering or judgemental on their being in a facility or on the house having new owners which could make parents feed off these emotions. You know your family best if this is likely to happen. Good luck in whatever you do.
have the family bring lots of photos, stories of good times and lots of good cheer, have a wonderful time, share lots of memories and spare your parents and you the sadness of having to have them leave their home again.