Sources close to West told US Weekly that the show hasn't been canceled, because it was never scheduled to begin with. West is still expected to show Season 6 at some point, but the date and location haven't been announced.
While he's been out in public, West hasn't been involved in many official events since leaving his Saint Pablo tour last November, citing exhaustion. He did, however, show Yeezy Season 5 this past February.
In May, West associate Ibn Jasper confirmed the first piece from Season 6—a new runner equipped with archive Adidas tooling.