When Agent Carter returns for Season 2, it's learned the series will consist of 10 episodes.
Series star Hayley Atwell participated in a Q&A at the Houston Comicpalooza where she offered the following:
I also think the show runners really want to move it forward. So it’s going to be set in L.A., and it’s 10 episodes. It’s going to be a very glamorous, dark world of 1940s Los Angeles.
Here is the description for Agent Carter Season 2 as well:
Dedicated to the fight against new atomic age threats in the wake of World War II, Peggy must now journey from New York City to Los Angeles for her most dangerous assignment yet. But even as she discovers new friends, a new home — and perhaps even a new love — she’s about to find out that the bright lights of the post-war Hollywood mask a more sinister threat to everyone she is sworn to protect.