Kevin Feige also confirmed in a recent interview that the first Avengers: Infinity War trailer will debut by the end of this year, although any specifics regarding the trailer have not yet been revealed.
In fact, the next four MCU movies, including Thor: Ragnarok (November 3), Black Panther (February 16, 2018), Avengers: Infinity War (May 4, 2018) and Ant-Man and the Wasp (July 6, 2018) were all designed to be much different than the Marvel movies that have come before it.
Kevin Feige has said in the past that the Avengers 4 title alone is a massive spoiler for Avengers: Infinity War, and all of the Phase 4 movie titles are spoilers for Avengers: Infinity War and Avengers 4 as well.
Marvel held the red carpet premiere for Thor: Ragnarok last night, where Marvel Studios president Kevin Feige shed some light on the future of the Marvel Cinematic Universe.