The Aaronic priesthood was not terminated with the Renegade Rabbi doing his thing. If you visit any Orthodox (don’t know about Conservative, Reconstructionist, or Reform) synagogue you will find that the first two people that always get called up to read the first two sections of the weekly Torah portion are the Cohens (high priests descended from Aaron) and Levis from the tribe of Levi.
Once the Temple is rebuilt the Cohenim and the Levi’im will be running the show again.
But if the Aaronic priesthood was terminated after the Renegade Rabbi did his thing then that means anyone can restart it and do whatever they want with it. No Orthodox Union seal of approval needed!
It wasn’t ‘restored’ by the ghost of John the Baptist either, which is what the Mormons claim.