Season five introduced us to Chronicoms, an alien race who secretly live on Earth and chronicle its history. Enoch is the one who decided to send S.H.I.E.L.D. to the future to save the world. In the process of getting the team home, he sacrificed himself. Later, Noah, another
chronicom, falls while assisting the team in the Lighthouse.
With the search on for Fitz in space, we imagine they will also meet Enoch, bringing him back into the story. There is also a cast listing for “Chronicom Hunter #1,” which means they will be centrally involved in at least one episode.