Honestly, I'd be surprised if any of them didn't recover.
That said, Trump himself. He is old, overweight, and generally doesn't look like in good shape. And they obviously try to make it appear as he has overcome the virus and is totally fit just a week after the diagnosis*. This strategy obviously requires him taking all kinds of medicine and needlessly straining his sick body instead of concentrating on actually getting well again. Maybe that'll come around to bite him in the ass big time.
* Or rather, the going public with the diagnosis. Maybe they just waited until he was too sick to keep it under wraps. I would not put it past these people to go into last week's debate against Biden with a knowingly infected president. Hell, him shouting so much could even be a deliberate attempt to get Biden infected as well, despite him standing a few metres away.
Of course I don't have any facts to support this, but who's to say they wouldn't do that?
What I can see happening is they're trying to keep his condition under wraps and will pump him full of as many drugs as possible to keep any sort of normality with him. That is only going to work for so long.