David S. Goyer IS the Script Writer!
So far this is what has been revealed by the studio.
Story: David S. Goyer & Zack Snyder
Screenplay: David S. Goyer
This was revealed at Comic Con when it was announced that Batman would star in Man Of Steel Sequel.
Now that Ben Affleck has been announced as Batman, do you see any change in the above line-up. Even if Affleck doesn't get an official story or screenplay credit, he might ghost-write them.
But what would you like Goyer to write in the sequel?
I would like lots of dialog scenes for Clark (not Superman), and a lot of scenes with Jenny and Martha. Diane Lane gave a very strong performance I think. She should definitely get some good scenes.