The latest actor to take the cape and cowl of the Batman, Ben Affleck took to Instagram and unveiled footage that is starting to spread a major rumor.

While production is still revving up on Justice League, in which Affleck’s Batman joins Gal Gadot as Wonder Woman, Henry Cavill as Superman, Jason Momoa as Aquaman, Ezra Miller as The Flash, and Ray Fisher as Cyborg; Affleck has also been collaborating with DC’s Geoff Johns on developing the next solo Batman film, which will be connected with the aforemented Justice League.

The footage shows an actor dressed up as Slade Wilson, the mysterious assassin who takes up the mantle of Deathstroke. Now, rumors are emerging. Will Deathstroke appear in Justice League? Will he be the main nemesis in the solo Batman film? Or better yet…will the assassin be in both films?

Only time will reveal where we will see Deathstroke. In the meantime, look for Justice League on November 17, 2017 from Warner Brothers and DC.