NBC's DC Comics-based supernatural thriller, Constantine, may be getting into some magical world building as it took an international trailer to show a familiar helmet from none other than Doctor Fate. The powerful sorcerer, or rather his helmet makes a cameo, and who knows maybe more in the series that could introduce the dark forces in the DC universe.
With other DC Comics shows on other networks it's not likely they'll share a cohesive universe but the NBC show could be central to the magical aspects of the comics that also include Madame Xanadu, Deadman, Shade, the Changing Man and Zatanna. Fate has already appeared in live-action on Smallville but this series appears much darker with an emphasis on horror and chills.
It's entirely possible that this will be a primer to the Justice League Dark movie that was rumored to be championed by Guillermo del Toro. If, and this is a big "if," Warner Bros. was smart they'd fast track the supernatural team-up with Marvel already working with their magical hero, Dr. Strange.
Doctor Fate is the name of several fictional characters in the DC Universe who are a succession of sorcerers. The original version of the character was created by writer Gardner Fox and artist Howard Sherman, and first appeared in More Fun Comics #55 (May 1940). - DC Wiki