Originally Posted by Ms. Marvel
I think her role will be more than just an "introduction" to be honest. I'm sure she has a relatively important purpose in the movie.
Well everyone on the film keeps saying on how she supposedly represents the possibility to Steve in moving on with a future. Given that the Russos picked and wrote Sharon with the intention of expanding her role in the next film, I guess it's a reassuring thing to hear that the Russos will be back for the third film to make sure it happens.