With the MArvel Cinematic Universe moving from the big screen to the small screen, with the success of Agents of SHIELD, there have been rumours of potential future Marvel television shows. One such rumour is that there are plans for an Agent Carter TV series, and Hayley Atwell says that she would love to reprise the role for it.

Hayley Atwell as Peggy Carter
Atwell told Digital Spy, "It’s certainly something I would be a part of doing. I’d be interested to show different sides of Peggy. I love the Marvel lot, they’re really great people to work with, so it would be nice to go back and work with them again. I’d definitely do it."
She added, "Although she’s kick-ass, and she can be aggressive and she can be just as competent as the men, it’d be nice to show that she’s a feminist in a way. It’s not just about her being aggressive and as aggressive as the men in those action sequences, but being able to be a little bit more rounded as a person.”

Hayley Atwell with Chris Evans in Captain America: The First Avenger
Since the Agent Carter television series is still in the early stages of development, it is not yet known if they will definitely look to have Hayley Atwell reprise the role of Peggy Carter. However, she did such a fantastic job in Captain America: The First Avenger that we see no reason why not.
Hayley Atwell on Craig Ferguson