No plot details have ever been revealed about the project, though many fans believe it will star the Royal Family, the first group of Inhumans introduced to the comics.
Once the dust has settled, then Inhumans can enjoy proper attention among the other Phase Four offerings.
So as it stands now, Inhumans is still a topic of interest for Kevin Feige, but it’s not the highest priority.
No doubt few will blink an eye reading that Phase Four is the earliest it could come.