If I were McConnell, I would filibuster until we got to pick the nominee, we get a President who can pick the nominee, or Ginsburg's seat opens up so we can strike a deal to put a solid conservative in Scalia's seat and a liberal in Ginsburg's seat. I think Republicans will hold the Senate, but if we don't, then I'd be on high alert looking for the nuclear option. In return I'd repeal the Byrd Rule during the lameduck session so that they can't bring up a vote to change the rules. Stop a reshaping of the court at absolutely all costs.
Disgusting.
Also I hope Republicans know that 9 out of 13 of the Circuit Courts have Democratic majorities and most of their decisions on contentious decisions will stand until their is a 9th Justice.