Does 24: Legacy's Cancellation Mean Corey Hawkins Will Return to The Walking Dead?
Legacy (and maybe Six Degrees of Separation on Broadway), and his incomplete ending is to allow him to come back when the time is right.
If his part was already written, maybe he'll show up in the midseason finale, but if not, a rewrite may have to happen to create room for him in 8B.
Maybe he'll bring back yet another new group of people who can help the Alexandrians, or maybe he'll pass along a warning about the Whisperers, an enemy who emerges in the comics after the All Out War storyline the show is currently acting out.