Feige said,
"Since we made our initial phase three announcement, we addedSpider-Man, which was a big joyous coup for us. We added Ant-Man and the Wasp, which was a big fun continuation of that story for us. Walt Disney Company has announced an Indiana Jones film for right around that same time. So I think it will shuffle off the current date that it’s on right now. How far down it shuffles, I’m not sure yet."
When Marvel Studios announced their Phase 3 lineup, Inhumans was scheduled to drop between the two halves of Avengers: Infinity War. But, a lot has changed since 2014. First, the inter-studio Spider-Man: Homecoming was added to the line-up, then Captain Marvel shuffled up by a couple months and Inhumans was bumped back in lieu of Ant-Man and The Wasp. Now, the film is off the schedule entirely. At least for the time being. When I spoke with Feige he was insistent that the studio still planned to adapt Inhumans for the big screen, it just “a matter of when.”