Okay, hear me out. While we know Heartless are going to reappear in Kingdom Hearts III, and while these certainly look like Heartless . . . Do we actually know they are? These new water-slinging enemies attack Sora early in the trailer and are noticeably missing the emblem emblazoned on most Heartless. This either means they're of the purebred variety or they're something else entirely.
With Vanitas making a cameo in Dream Drop Distance, rumors are flying that Ven's dark half will be one of the thirteen seekers, priming the universe for a reintroduction to the Unversed. Could these monsters in the trailer be Unversed?