Oliver Queen (Stephen Amell) rode off into the sunset at the end of "Arrow" Season 3, but it looks he will be returning to join "The Flash" hero Barry Allen for a funeral. The stars of the two CW series both shared a photo Tuesday from the set of one of their shows' new seasons in which it appears they are mourning a major character's death. 

In the photo, posted by both actors on their Instagram accounts, Gustin and Amell pose in black suits and ties standing outside on a sunny day. While there is no confirmation of this, every detail from the photo -- from the actors' suits to the grassy, cemetery-like location -- screams funeral! If you need more proof that the photo is teasing a character's death, look at the caption Amell wrote on his post. While Gustin simply said, "This morning with [Stephen Amell]," Gustin was a little more cryptic, writing "Game changing scenes are fun."

See Amell and Gustin's photo in the tweet below:

The possibility remains that Amell was just being dramatic with his caption, but if "game changing" really does reference a character's death, then who should fans be bracing themselves to lose in the upcoming seasons of "The Flash" and "Arrow"? The fact that both Amell and Gustin's characters would be present for the alleged funeral would imply that the doomed character has a connection to both Oliver Queen and Barry Allen. Could Felicity Smoak (Emily Bett Rickards) be in danger? Or perhaps Caitlyn Snow (Danielle Pannabaker), who fans know will become Killer Frost (a character killed in the comics) in "The Flash" Season 2. Is she on the chopping block?

At the very least, Gustin and Amell's photo is a promise of more crossover fun between their shows in the upcoming television year. 

Watch a promo for the new seasons of "The Flash" and "Arrow" below:

Which character will die in the upcoming episodes? Or does the actors' photo mean something else entirely? Fans will have to wait to find out. "The Flash" Season 2 debuts Oct. 6  and "Arrow" Season 4 premieres on Oct. 7.