The most exciting character might just be Hope van Dyne (Evangeline Lilly), arguably the most qualified hero in the first movie, who didn't get a costume to wear. Lilly's already been fitted/scanned for her Wasp superhero outfit, which may look like the costume in the above image - as revealed at the end of the Ant-Man movie. Wasp was originally intended to be in Captain America: Civil War but Lilly claims her pregnancy put her return appearance on hold until later in Phase 3.
Reed has likewise commented on Hope van Dyne's own story in Ant-Man:
"This movie had to have a beginning, middle and end, and with or without the costume, Ant-Man is also very much Hope van Dyne’s origin story because she has to learn to make peace with her father and she’s an incredibly powerful character in that movie – way more qualified than even Scott Lang is to take that job.
"We knew it would be incredibly satisfying to introduce her getting the costume because she so deserves it. Part of the arc between Hank Pym and Hope van Dyne is Hank realizing, I’ve got this incredibly capable person right here and I’m finally realizing what I thought was protecting her has really been holding her back. And he rewards her with this suit. It felt satisfying in the moment but of course everybody wants to see Evangeline in the outfit — me being one of them — and a kickass hero."
With Ant-Man proving to be a hit, earning more than half a billion dollars at the worldwide box office - more than the first outings of Captain America and Thor in 2011 - Reed gets to realize the things he was hopeful of when we spent time with him a few days before Ant-Man hit theaters, previewing footage at Industrial Light & Magic. At the time, Paul Rudd was already working away with directors Anthony and Joe Russo on the set of Captain America: Civil War, and Reed was a little jealous. He explained to us that he feels a sense of ownership and pride over the Ant-Man movie characters and the unique shooting style he helped develop with a macrophotography team - the first third unit on any Marvel Studios production - and was looking over Civil War dailies and chatting with the Russos to help out.
Brad Winderbaum subtlety said at that event that they (Marvel) would definitely want Reed back and were impressed with his work - understandable given the challenging situation he came into at the last minute, taking over for Edgar Wright. And now he's getting the chance.
“There was definitely a point where I was a little envious. I felt a proprietary thing over that character. I remember to say to Paul, ‘You’re going down to Atlanta to work with those other guys?’ It was like my girlfriend had left me for someone else.”
Captain America: Civil War will release on May 6, 2016, followed by Doctor Strange - November 4, 2016; Guardians of the Galaxy 2 - May 5, 2017; Spider-Man - July 28, 2017; Thor: Ragnarok - November 3, 2017; Black Panther - February 16, 2018; The Avengers: Infinity War Part 1 - May 4, 2018; Ant-Man and the Wasp - July 6, 2018; Captain Marvel - March 8, 2019; The Avengers: Infinity War Part 2 – May 3, 2019; Inhumans – July 12, 2019; and as-yet untitled Marvel movies on May 1, July 10 and November 6, 2020.