What would happen if the PO actually was privatized?

Just to be clear, I am against privatization. But it seems like that’s all republicans want to do. And seeing who’s in charge of the government next year, I know these ideas will be floating around. How shit will it be to work for the PO if we do get privatized? People talk about our wages getting cut, but we’d still have a union, right? Idk im just kind of worried about usps future.