Will Donald Trump go back to hosting Celebrity Apprentice now that he's not president anymore?

I would expect

that the Presidential lecture circuit is both more lucrative (at least on a per hour basis)

and more prestigious

but

if it is NOT more lucrative

then

I expect that he might do that

IF the producer/network is interested

(which it might or might not be).

SAG-AFTRA may expel him.   No broadcast TV as an entertainer for him if that happens.

No, it's Dancing With The Stars if he's lucky.