I doubt the Dems will take the House; if they do, they can't get anything passed due to it having to pass the Senate and if they manage to get something passed, Trump will veto it and it won't get 2/3 of the House or for sure, the Senate. We have a stalemate for the next two years.
Forgot to say if Dems control House, they can impeach Trump, but can't enough of Senate so that won't happen.