Bizarro has been rumored quite a few times until now to make an appearance in the newly formed DCEU - and first time it was for this year's Batman v Superman, as the powerful villain who will unite the Justice League. That rumor was based on the fact that we saw Zod's corpse in Luthor's possession - Lex tries to manufacture his own Superman and fails, only creating Bizarro. Obviously, that rumor has been debunked, since Zod will become Doomsday, as the last trailer has shown.
But is this the end of the Bizarro rumor? Not at all. When explaining why he chose Doomsday for the final act of Batman v Superman, Zack Snyder said something very interesting: the creation of this villain by Lex will factor into the Justice League films. What does that mean exactly?
Obviously, the director didn't say too much about it. What we can suspect is that Doomsday won't be the last time when Lex will try to manipulate the genetic code of a Kryptonian. Zod is just his first test subject. Where will he take his next one? Where will he find the material for another experiment?
Easy enough - from Superman himself. Seeing that Zod, a malevolent being basically produced in a tube, hasn't the right genetic material, Lex will try to use some of Clark Kent's blood (and we do believe that Superman will bleed). Which eventually will lead to the creation of Bizarro. We may have a few hints already, in the recently released score track list for Batman v Superman.
Thus, besides Snyder's own words that the creation of Doomsday will factor into the Justice League films, one of the tracks from the Batman v Superman soundtrack is called Blood of My Blood.
This theory has already started spreading on the web. But what do you think?