Re: What villain should be pulling Winter Soldier's strings?
Winter Soldier works for the Russian government, so there's no need to introduce a primary string puller for most of the film. Maybe at the end we'll get a reveal of who was influencing the Russian government or something. Either Von Strucker or Zemo.
2014 - Captain America: The Winter Soldier | The Amazing Spider-Man 2 | X-Men: Days of Future Past | Guardians of the Galaxy
2015 - The Avengers: Age of Ultron | The Fantastic Four | Ant-Man
2016 - Batman vs. Superman | X-Men: Apocalypse | The Amazing Spider-Man 3
TV - Arrow | The Flash | Gotham | Constantine | The Avenger | Hourman | iZOMBIE
TV - Agents of S.H.I.E.L.D. | Agent Carter | Daredevil | Luke Cage | Iron Fist | Jessica Jones | The Defenders