However he reveals nothing as far as plot or characters, saying only:
"It's one of those deals where if I told you, I'd have to kill you,"
I think everybody felt a 3rd movie was a foregone conclusion, but its nice to see that the wheels are in motion.
Presumably the project will return Nolan, Goyer & Co. (who've indicated they're already shaping workable story ideas for a third Bale-BAT adventure), although nothing should be seen as set in stone until former announcements are made.