Hayley Atwell recently did an interview with The Big Issue where she discussed her role as Peggy Carter and confirmed that yes, there is a one shot that will debut at San Diego Comic-Con.
“Fans of the first film really wanted to find out what happened to Peggy afterwards, so Marvel are also making a short film, which is basically ‘What Peggy Did Next’, which will be shown at Comic-Con [the annual international pop culture convention held in San Diego] and be on the DVD extras of the second film.
She mentions that she has a small role in the upcoming sequel as well. There’s no word on where exactly this short will show up at San Diego. Will it be during a “Winter Soldier” panel? Will there be another scavenger hunt like with “Item 47?” Only time will tell but personally, I can’t wait to see this!