I don't see a major impeachment push coming. Not because there wasn't enough reason, but because both parties already found ways to arrange themselves with a Trump presidency:

• To the Democrats he will be an easy target to score points and build their 2020 efforts. Trump does not have the capability to avoid misssteps and hide failures, unlike professional political sleazebag Mike Pence. Also Trump won't be able to targetedly advance a Republican agenda.

• The Republicans will just quietly arrange themselves with him. Now that he feel like he won, Trump has no reason to mess with them anymore. He is either sympathethic or indifferent to their goals, and will just keep signing whatever they hand him. He's somewhere between accomplice and useful idiot to them.

• Either side would lose from trying to impeach him. Dems will look like sore losers, Reps disgruntle the alt right and Trump voters.

So what are we going to get? A worse Bush Jr presidency. An incompetent president signing bad legislature mostly written by others. A strong increase in racial and religious divisivenes, inequality, and economic troubles. Deregulation that might trigger the next recession. Other than Bush he won't get the later "at least he seems like a nice guy in private" benefit.

What will happen 2020? It entirely depends who the Democrats can get as a front runner. Another mediocre candidate won't do. The Berlusconi era in Italy has shown that even a politically terrible populist can stay in power for a long time if the opposition can't muster a strong alternative.