Probably the only reason Mugabe hasn’t come down with an iron fist is because he can’t. The election results were so obviously against him that even his supporters seem split on what do do. And he’s old and probably fading anyway.
Will the rightful winners of the elections be allowed to take power peacefully? That decision is up to Mugabe, corrupt thug that he is. He’s been wobbling, saying he’d leave if not prosecuted for anything (an obvious admission of both guilt and weakness) but also detaining journalists and arresting opposition part members.