This was taken from today's first day of shooting at Heinz field. Reports were that:
Bane interrupts the game at the kickoff (with a huge explosion, causing a crater where players are killed), bringing a silver, metallic round-shaped "machine" with him as well as a hostage. He then declares (from the video):
"Gotham! Take control! Take control of your city! This is the instrument of your deliberation! Identify yourself to the world!"
After the speech, he kills the hostage, ensuing panic.
I do not know if they will be dubbing him over, I'm sure they will be, but there you go. The voice of Bane (for now).
source - people that I know who were extras referred me to this video