Marvel has finally announced what is coming after Ant-Man, Captain America 3 will be their second Phase Three film. The second sequel will be set for release on May 6th, 2016. The spot had been claimed by Marvel almost a year ago, but that didn't stop Warner Bros. from moving Batman Vs Superman on the same date. Considering, the massive buzz surrounding The Winter Soldier (some "claim" the best Marvel film to date) it wasn't shocking the studio would choose to move forward with a third installment.
The Russo Brothers recently confirmed to Collider they've signed-on to direct Captain America 3, and are currently working on the film's outline. Also confirming, they were speaking with franchise writers Christopher Markus and Stephen McFeely, about the script. It's the only Phase Three project (besides Ant-Man), that has both writers and director/directors on board.
When it comes to who will be returning or added to the line-up that remains to be seen. Sebastian Stan recently revealed he has a nine-picture deal with Marvel, something that only was reserved for actors like Samuel L. Jackson and Scarlett Johansson (I expect could be back depending on her new baby). It's possible this could mean that Bucky (villain or friend) might be showing up in Captain America 3, Avengers sequels, his own solo Winter Soldier prequels or could very well end up replacing Rogers as Captain America.
Thomas Kretschmann (playing villain Baron Wolfgang von Strucker in Avengers: Age of Ultron) also spoke about his future in the MCU. Stating he believes his character will have a place in future films. Strucker is primarily a SHIELD and Captain America villain, so having him being the main villain of Captain America 3 wouldn't be a shocker. The Baron originates the terrorist splinter group A.I.M. (first mentioned in Iron Man 3), which has ties to HYDRA. He very well could be the successor to Red Skull, and finally resurrect HYDRA in the modern age.
We could have a better idea of what to expect in the third film, after The Winter Soldier and Age of Ultron are released. I wouldn't rule out Crossbones (played by Frank Grillo), Baron Zemo (hinted to in Winter Soldier production artwork) or even Madame Hydra (Strucker's second in-command), also being apart of/introduced in the sequel.
