Enoch and Elijah make sense, but who will re-institute the law and sacrifices? They did not recognize "Elijah"(JohnTB) before. Someone with authority will have to be recognized to call for the rebuilding of the Temple and start the sacrifices. We are told The angels had to fight in heaven over the body of Moses. Why him and not anyone else? Perhaps Moses is resurrected in the Rapture and stays behind as a third OT personage. Admittedly, I have no scripture for that idea.
It is striking these days how many people deny there is a god or even openly oppose Him. I n Revelation it is just the opposite. Everyone is consumed with fear for God. There is no doubt at that time. Some very big things are coming.