Originally Posted by Dark Raven
I'm guessing that Emily VanCamp has to be Sharon, since Carter featured in the original Winter Soldier storyline. She was kidnapped by him, and when rescued by Cap, tells him that her kidnapper looked like Bucky. So Sharon is integral to the storyline, unless they're changing details for the movie.
It's highly unlikely that the movie version is going to look much like the comics version, on a plot level. They have to introduce a slew of new characters, likely as not there'll be a different villain behind it, and some people (like Natasha) weren't in the comics story.