While only one official image of Jesse Eiseberg as Lex Luthor has been revealed, it seems as if Jared Leto won't be the only one wearing purple.
According to a rumor at JoBlo.com, Eisenberg will be seen wearing the Lex Luthor Warsuit the character is known for donning in the comics and other related media.
It's said the Batman Vs. Superman Lex Luthor Warsuit will be similar to the "many variations we've seen in the past," but "will obviously fit the style and the look of the film" and DC movies in general.
While it's unclear how much of Batman Vs. Superman Eisenberg will be seen in the movie wearing the Lex Luthor Warsuit, it's speculated to be toward the end battling Superman.
If we go by the trailer, it seems Lex may obviously create the Warsuit in response to Superman, possibly from Kryptonian technology left over from Man of Steel and Zod.
I'll throw another possibility out there: Lex joins Batman, Superman and the other Justice League members in battle against whatever shows up at the end of the movie (Doomsday?).
Zack Snyder previously offered the following about Lex in Batman Vs. Superman:
He’s not any of the Lexes that you’ve seen, that’s for sure. Other than him being a captain of industry and one person to the world and another person to himself. And bald, of course. Our Lex is disarming and he’s not fake. He says what he believes and he says what’s on his mind. If you can unravel the string and decipher what he means, it’s all there.
(cool fan art via tumblr:)
"Batman v Superman: Dawn of Justice" has a March 25, 2016 release starring Ben Affleck as Batman, Henry Cavill as Superman, Gal Gadot as Wonder Woman, Amy Adams as Lois Lane, Laurence Fishburne as Perry White, Diane Lane as Martha Kent, Jeremy Irons as Alfred, Jesse Eisenberg as Lex Luthor, Ray Fisher as Cyborg with Callan Mulvey, Holly Hunter and Tao Okamoto in new character roles for the film. Justice League is to follow directed by Zack Snyder as well.