Since Snyder has said they're making a clean break from past Superman films, it's possible we won't see Luthor. I chuckle at fans when they keep saying they're sick and tired of seeing Lex Luthor in a Superman film. Yes, Clark has a few other villains, but the plain and simple fact is that a general audience is gonna know who Lex Luthor is. No one but comic book fans know who Zod, Brainiac, Metallo, are. You've got to build up to these other villains. We'll see what happens when the rest of casting is announced.