Sword Art Online's Final Arc Has Argo the Rat Return

Though the anime still has a ways to go, one of the first iterations of Sword Art Online is slowly drawing to a close. The light novels are now in their seemingly final arc, with the "Unital Ring" storyline being the series' curtain call. To this end, it's bringing back characters from the story's beginning, including an information broker who hasn't been seen in a long time.