Prayers for her family and the country.
This election just got even more serious. I don't think Trump/McConnell have the votes to ram a nominee through the Senate before the election. Too many GOP Senators are fighting for their political lives. If Trump is reelected then obviously he will have an uncontroversial right to nominate Ginsburg's replacement. But things could get very ugly if he loses and Trump tries to push through a nominee before the next president takes office and the next Senate is seated. That kind of bare knuckled power play would likely provoke the Democrats, assuming they have a majority in the new Senate, to pack the court in retaliation.
It's far too soon to get a handle on how this is going to play out. But one possible scenario is the GOP and the Democrats may cut a deal along the following lines... no new nominee until after the next inauguration in exchange for a pledge from Democrats not to pack the court if they win both the presidency and the Senate. Unfortunately the political atmosphere, both in DC and the country more broadly, is so acrimonious right now that I am not sure there is a sufficient level of trust to cut a deal of that magnitude. There will be heavy pressure from the far wings of both parties to stake out extreme positions.
If this isn't handled right, we could be on the cusp of a serious constitutional crisis.