According to a report by Bleeding Cool, Disney/Marvel have added two more movies to their release schedule.
The two films are scheduled for May 6th 2016 and May 5th 2017, but their titles have not yet been announced. The dates do not match any projects already known to be in active development, so these are almost certainly unannounced films. The films could include rumored Dr. Strange and Black Panther projects, or could simply be third installments in the Captain America and Thor series.