So it is looking like the Dems may possibly retake the senate. If they do they will hold it for sometime because 2022 is stacked against the GOP and it looks like the Dems will be able to widen their lead then.
I think that expanding the Supreme court is inevitable at this point and will be necessary since these three justices are basically sham puppets. Here is a fun map to play with...
2020 Senate Election Interactive Map