After watching some of the discs from the Superman set, I'm hoping they modify the suit for the sequel. I was watching one of the documentaries on Disc 3 of STM, and the costume designer specifically mentioned how they tried to get the costume to make Reeve look as masculine as possible. I feel...
While I'm afraid Zod would be a retread, I could see it making sense. I mentioned this in the last thread, but not that Superman has a son, Zod needs to make another heir of Jor El kneel before him. :)