Too soon to say. I think the elections and events of the 2020s will determine what path the parties go down going forward. I think if someone like Warren wins in 2020, gets re elected, and has two decent terms, the Democrats will return to their populist, New Deal Roots economically, while the GOP moderates socially and serves as a check and balance on the Democratic party economically. If Trump wins in 2020 against Warren or Sanders, the GOP continues down the path it's gone down over the last decade, while the Democrats remain the party of Clintonite politics. If Trump beats Biden or Harris, the GOP stays as is while the Democrats go more left.
I agree, but what if Biden wins. Would there be a lot of opposition as well from inside the party itself?