A pitch to justify Dexter Morgan’s return would seemingly have to convince Michael C. Hall his character’s need for human companionship proved too great for him to stay isolated or a threat that could place someone he cares about in danger.
That’s what we’re speculating anyway, as we have no idea what projects Hall has rejected since the drama’s end.
Hall’s approval of the show’s ending is rooted in Dexter’s realizing isolation will protect the ones he loves.
Perhaps a Revenant-style man-in-the-wilderness revenge story could be the right fit…