The crummy Dark Tower movie couldn’t stop the sudden onslaught of Stephen King adaptations, so the ones that have already been made might as well stick around as long as they can. The It sequel is officially in development, Hulu’s Castle Rock recently got a new trailer, and now AT&T’s Audience Network has renewed serial killer thriller Mr. Mercedes for a second season. This news comes just ahead of the first season finale, so it’s a particularly well-timed announcement.