But even in the post-credits scene, it didn't feel like the Man in Black was any closer to cracking the code than he has been all season. He still looks lost, which only supports the finale's thesis that humans can't change. The scene appears to confirm that the version of William we're seeing in that scene is indeed a host, but upon further examination, the brief exchange between the two characters has less bearing on what we've seen before than it might appear. We still don't know "when" in the timeline this scene occurs, though it's likely sometime in the distant future. It doesn't really clarify anything. It only complicates.
That lack of certainty is reflected in the multiple interviews that Lisa Joy has given in the wake of the finale. "Just to clarify, we don't necessarily say he's a host," Joy told The Hollywood Reporter. "A host refers to a creature like Dolores, someone who is pure cognition, someone who is made up of nothing and has a fabricated body as well. It's definitely a sequence that's indicative of a direction we're going to." While she's unwilling to call the version of William we see a host, Joy has confirmed that Emily is a host in that moment. "Katja Herbers in the future talking to the Man in Black is now a Host version of Katja Herbers," she told The Wrap.