Which means that, where Trump 1 had a motive to appear to do what he’d promised to do on the campaign rail, Trump 2 - with no potential for a third term - is basically free to ignore everything that he said on the campaign trail.
To my recollection, there were very few things that he actually worked to achieve during his administration. I recall that he pushed very hard for the Wall. He also tried to get Congress to agree to something in terms of health care reform but I never saw any indication that he had a particular plan for it himself. He really did - at moments - try to reduce US military presence outside our borders.
Outside of that, he did things like shutting down e-Verify and increasing seasonal worker numbers - so, no true passion to get rid of immigrants; he kept passing exceptions to his tariffs on China, and those tariffs were always too small to do anything about China at all, it just allowed (with tax cuts) him to shift the tax burden from the wealthy to the poor; he did some major deals with Saudi Arabia, trying to give them US military hardware against the permission of Congress - so no true hatred of Islamic people.
In all of that, he was probably mostly fixated on the Wall because it was a way to dump infrastructure bucks into sham corporations owned by his friends and business partners. Or, at the best, he was motivated to do it because he was made fun of for it so much.
For healthcare, I’d venture to guess that his motive was to accomplish the impossible. Obama pulled it off. Trump didn’t. Once he failed, he stopped caring about it anymore. Given that he has no plan of his own, I doubt that he’ll go for it again.
So, really, the only thing that we know of that he’s consistent on and pushy about is de-arming the USA. Whether that’s because of politics or lingering compromising materials in foreign lands, I don’t know, but that’s probably the only political agenda that we can think, confidently, he’ll continue on.
Otherwise, his goal is just to be talked about. He’ll do any other thing that he can be talked into as being something only a great and powerful leader like him would do - to the extent that is created headlines.