Yes, they have no reason not to at least try.
Why? They gain nothing.,
They have absolutely no logical reason to try and pull this, lol, but Republicans are generally quite unintelligent so they may try it. She won't be removed from office by the Senate, though.
Protasiewicz, and the liberal majority she creates, is an existential threat to the WIGOP. Should their gerrymandered maps get overturned they’ll actually have to start competing for the legislature and could potentially loose control of it. They currently are two seats shorts of a super majority, that would be detrimental to them long term.