No, voting for Democrats isn't enough, because they're shit. They'll probably in better shape to be reformed that Republicans, but that's not saying much. I don't have a ton of hope based on what I'm seeing. I expect they'll either go back to the behaviors that enabled Trump, or commit some anti-democratic power grab more extreme than anything Trump has ever done.
IMHO, after someone like Trump, they need to reform themselves to be an actual-majority party that can competitive almost everywhere.