Introducing some fresh adversaries would be nice too.
Superman the Movie: Lex Luthor
Superman II: Lex Luthor and some Kryptonians
Superman III: Generic Lex Luthor wannabe with Richard Pryor standing in for Brainiac
Superman IV: Lex Luthor and his idiot nephew
Superman Returns: Lex Luthor again
Man of Steel: Kryptonians again, but with no Lex Luthor!
Batman vs. Superman: Emo Lex Luthor
