he doesnt know its ziphers doings but perhaps zipher is watching him from afar with his new appearence

fight happens as fezz runs faster then sound barrier in open ground screaming and slams innto zipher pushing him back nneither of them die they just fight but this is first incision of zipher returning motive

maybe this is finally when we have the adorable moment where ely is dancing to the side with her headset whilst the fight occurs in the background

fezdex doesnt die no one does