I'm not sure where "24: Legacy" will be fictionally set but I read that it will likely be the D.C. area. Atlanta just stood in for D.C. on the HBO film "Confirmation." And actually on "The Walking Dead," the areas around Senoia are covering for Virginia.
Others appearing on "24: Legacy" are Miranda Otto ("Lord of the Rings") and Jimmy Smits ("NYPD Blue").
Deadline.com noted that the pilot got great buzz internally at Fox. (The pilot was not shot in Atlanta.)
A summary of the initial set up:
Written by 24 veterans Manny Coto and Evan Katz and directed by Stephen Hopkins (who helmed the original 24 pilot), 24: Legacy centers on military hero Eric Carter (Hawkins) whose trouble follows him back to the U.S. – compelling him to ask CTU for help. The show chronicles an adrenaline-fueled race against the clock to stop a devastating terrorist attack on United States soil – in the real-time format that the original series became famous for.
Fox is also airing a new Lee Daniels drama "Star," which will be shot and set in Atlanta. That show is about an all-girls group and include Queen Latifah (who already spends a lot of time in Atlanta) and "Law & Order" star Benjamin Bratt on the cast.
The most recent Fox show to shoot from Atlanta was the short-lived "Red Band Society" in 2014-15.