I would say "let Trump waste his money on these lawyers", but we all know that Trump is going to shaft them out of hundreds of thousands (or more likely, millions) of dollars in legal fees.
They will process postmarked ballots through Friday, but if Biden mounts a commanding lead tonight or tomorrow, you may see the networks call it for Biden. It's doubtful that the ballots received between tomorrow and Friday would help Trump.
So, this is what I predict is now off the table for the next two years:
1. Climate change legislation
2. Gun control
3. PR/DC statehood
4. Filling judicial vacancies
What could be possible:
1. COVID legislation
2. Budgetary stuff
3. Federal marijuana reform