Jesse Eisenberg had a small cameo as Lex Luthor in Justice League after all of the credits rolled, but according to some concept art he was going to have some other scenes in the movie as well.
Rob McKinnon shared some of the work he did on Justice League, which included a sketch of Lex Luthor in his cell. In the theatrical cut Luthor has already escaped prison, so perhaps in Zack Snyder’s version we actually see him being broken out. There were rumors that Batman interrogates Luthor in his prison cell in Snyder’s cut too, just like he did in Batman v Superman. Check out the concept art in the gallery below.
SOURCE: Rob McKinnon