It’s unclear if we’ll ever see El Diablo in the DCEU again, although Jay Hernandez isn’t listed on the cast for James Gunn’s The Suicide Squad. It’s possible we may have seen the last of him, although some of the other characters will appear in the upcoming sequel/reboot. Namely Harley Quinn, Amanda Waller, Captain Boomerang, and Rick Flag.
Article source: https://www.cinemablend.com/news/2547085/suicide-squad-director-reveals-the-only-battle-he-won-with-the-studio-david-ayer