Yeah, I don't expect Luthor to have a big role yet, but he is going to be there regardless.
I'm still so sick of seeing the same enemies in Superman movies though. Why Zod? Why not Metallo? Intergang? Parasite? Toyman? Why does it have to be a villain that was already done in the movies before? I understand not using Brainiac or Darkseid, because they need to be built up, but come on.