UPDATE 9/29/2015 3:30 PM PT: Since the publication of the original article, The CW has made the behind-the-scenes video containing what appears to be a major Firestorm-related spoiler private, and thus is no longer publicly viewable.

SPOILER WARNING: The following article contains potential major spoilers for "The Flash" and "DC's Legends of Tomorrow."

Original story: The latest promo for Season 2 of "The Flash" takes viewers behind the scenes of The CW's hit superhero series, while introducing Franz Drameh as Jay Jackson -- the new human half of Firestorm.

Originally announced as part of the cast for the upcoming "Arrow"/"Flash" spinoff "DC's Legends of Tomorrow," Drameh's Jackson is described by Warner Bros. as "a former high school athlete, whose pro-career was derailed by injury. Now making ends meets as an auto mechanic, Jay will come to have a surprising affiliation to the S.T.A.R. Labs crew."

Where this leaves Robbie Amell's remains unknown. As Ron Raymond, Amell was joined with Professor Martin Stine (Victor Garber) to create Firestorm in the first season of "The Flash." While Garber has been featured prominently on advertisements for "Legends of Tomorrow" and is a member of the show's regular cast, Amell -- who has a role in the upcoming "X-Files" reboot -- has not been seen in any promo art or footage from the spinoff. Amell's days as half of Firestorm don't appear to be totally over, however, as he appears as Firestorm in photos from the season premiere of "The Flash."

Starring Grant Gustin, Carlos Valdes, Danielle Panabaker and Jesse L. Martin, "The Flash" returns to The CW on Oct. 6 on at 8 p.m. EST.