With Zod, they can rip off the I Am Legend poster....
"The last son of Krypton is not alone."
If Superman's been around for a while: Jim Caviezel.
If Superman is still fairly young: Matthew Bomer.
To ensure that Nolan's Batman and Snyder's Superman never crossover: Christian Bale.
Goyer is writing the script, which is rumored to have, like “Superman Returns,” a Richard Donner Superman connection. In the movie’s case, it’s a villain connection: General Zod.
Unless they use the Zod storyline from Superman and Superman II as what happens before this movie, that's not a direct connection. That's like saying The Dark Knight is connected to both Batman (Joker) and Batman Forever (Two-Face).