In an interview with Collider, Kevin Feige said Marvel is planning to delay their upcoming Inhumans movie. The President of Marvel Studios is currently on the press tour ahead of the release of Captain America: Civil War.
One of the great things about the Marvel Cinematic Universe is looking down the road to what is coming. That road has gotten pretty long, given their massive lineup of films. Despite their long term plans, Marvel isn’t adverse to changing things up. According to Feige, their slate is about to change again, with Inhumans moving:
“Since we made our initial phase three announcement, we added Spider-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.”
The film had been scheduled for release on 12 July, 2019. It will likely focus on the Inhuman royal family, the group who were the main focus of the comics series. In the comics, they are a race of super-humans, who gained powers through genetic tampering. They were experimented on by Kree aliens, with those super-genes being passed on to their descendants. While the royal family hasn’t made an appearance on screen yet, the species has.
Agents of SHIELD introduced Inhumans in season 2, and they continue to be a key part of season 3. There were rumours the film would be scrapped after they were already covered on TV. However, Feige says that isn’t the case. The film is in development, but they’re just working on finding a suitable release date. Of course, there is still a chance that Black Bolt and Co. could pop up in Avengers: Infinity War.