Alan Bates at acting-auditions.org posted the following on his site:
"Breaking Dawn II will be released in 3D, However, no decision has been made about Part I"
As it stands Summit has not confirmed either film in 3D.
Alan also states "the films extras will be hired near the shooting locations throughout filming"
The countdown begins, the cast is scheduled to start pre-production next month. The months ahead will be very interesting.