Deathstroke

Deathstroke was revealed the last week by Ben Affleck, on what seems to be a set for the Justice League film (namely the team’s new Jet, called the Flying Fox). And this has led to numerous questions. Will Deathstroke have just a simple cameo? Will he be wasted and be just a secondary character?
Well, the most recent rumor says that Deathstroke will cameo in both Justice League and The Batman. The character will be tasked by Amanda Waller to help recruit new members for the Suicide Squad. While it isn't that clear what he’s searching for in the Justice League, we already know that The Batman will feature multiple villains.
So it isn't too hard to assume that the Terminator will have a much bigger role in this movie.
But still, does that mean that he'll be just a secondary character? Is this the way the DCEU wants to handle one of the most well-known mercenaries and assassins in the DC universe? Not at all.
Later Edit: Joe Manganiello was confirmed in the role.