The Valkyrie conspirators had questionable character, but some were very anti-Nazi and the like. But what if a different group had dispatched the Fuhrer?
What if it was Himmler or Goering? So either the SS, or some other Nazi faction?
What if a White Rose suicide attack dispatches him? I don't think Social Democrats, Communists, or other leftists have any chance of being a movement, much less a coup, but who would take over in that case? Just what power groups are there besides various Party factions and the military?