I say he is a lazy liar and will do as little as he possibly can, all the while taking every honor and honorarium anyone is willing to give his dumb ass.
There will be plenty of knuckleheads out there who will find him useful, worldwide, to attempt further their own agendas, through his dumb ass.
They will even write his stupid speeches for him. No way they will let him just get up there and sputter like he does.
He's lazy but he also enjoys the limelight. As you said they'll be writing his speeches, and he'll be a high paid puppet for an hour here and an hour there.