At this point I would have no idea. The Trump administration does seem to have a habit of filling these arising vacancies from the ranks of the administration instead of from outside the government.If he does, who will replace him? Someone special from Don "Capone" Trump's menangerie?
In other news, Trump went all 'L'état c'est moi and declared that vacancies in the State Department are by design, that there's some people that he doesn't like there but that none of it matters because he is the only person that matters. Right. There's this adage that personnel is policy, but the Trump administration can apparently function without crucial personnel - and possibly in violation of the law.
Trump on Unfilled Jobs: