Seems Black Widow will be the only female Avenger
, but to expect more females in the supporting roles as non-Avengers.
"It is true that the movie is only going to have one female Avenger, but she will not be the only female character," he told them, which makes us think some of the women from the other Marvel movies--maybe Gwyneth Paltrow's Pepper Potts from the "Iron Man" movies?--would be making appearances in the movie.
Let's think further outside the box of Pepper Potts. What other non-Avenger female characters are there that could appear. Perhaps ones that are non-powered when we meet them, then later they are.
Janet VanDyne, retconned to working with Stark Inc or something?
I'm fine with Potts having a cameo or small role but would like to see the stage set for more female Avengers down the road should sequels emerge.