It’s been a while since I finished the show, so I might be wrong about some things.

The last we saw of Daisy Johnson was her in space with Daniel Sousa and Kora. She was still working with SHIELD. Everyone else, other than Mack, had a somewhat end to their story. I think that Marvel might have made this decision to leave the possibility for Daisy to come back in future projects. With both her connections to the Kree and to SHIELD, I think that it is possible for her to be in either Secret Invasion or The Marvels. The Marvels already has a pretty stacked cast, so I doubt she will show up there. Secret Invasion is the most likely bet. With Fury being one of, if not the, main character, I think we will get a lot of SHIELD stuff out of this show. I don’t know if that means Agents of SHIELD or stuff from the movies. But I think that it’s very likely that and Agents of SHIELD character might show up in Secret Invasion. My bets are on Daisy.