Mercenary for Lex Luthor

We already know that Jesse Eisenberg will return to the DCEU next year, when Justice League is released. What we don't know is everything else concerning his character. Will he manage to escape Arkham? Will he be hired by the army, or even Waller, because of his extraordinary mind? Everything is possible.

I'd consider him as an agent, especially since he gathered so much knowledge from the Kryptonian scout ship.

So what if this is the moment Deathstroke is created? What if Lex Luthor, using the information received in Batman v Superman: Dawn of Justice, creates another ultimate weapon? I'd see that happening. Sure, it isn't exactly a comic book origin story, but this would be connected pretty neatly.

And there is always the possibility of Deathstroke being assigned to supervise Lex Luthor and make sure another Doomsday doesn't happen. Just like it isn't out of the realm of possibility for Deathstroke to actually be hired by Lex, for reasons that won't be revealed until later on.