Marvel studios has created mystery placeholders for 5 of there upcoming films. Dates are as follows;
July 8, 2016 (following a third Captain America film on May 6, 2016)
May 5, 2017
July 28, 2017
November 3, 2017
July 6, 2018
November 2, 2018
May 3, 2019.

We don’t know any titles yet (outside of Doctor Strange, which is likely the July 8, 2016 release), but after Marvel Studios presentation at Comic-Con we will likely know the future of these things! Check back this week for more details!