As seen above, "Jimmy Olsen" has mechanical legs in Batman v. Superman: Dawn of Justice, which is something that I find to be very interesting... doing such a thing to such an iconic character seems risky, but it makes sense in setting up a twist of that would (potentially) affect Superman in a major way. The story circulating around the web is that Argo actor Scoot McNairy will be playing Jimmy Olsen, before The Flash was offically cast and announced, it was predicted that McNairy would be The Flash in some sort of cameo appearance, he had green leggings on for a visual-effects overlay but that was later revealed to be there to make his real legs appear to be missing (as to be replaced by robotic prosthetics). In Justice League: Doom, a loose adaptation of JLA: Tower of Babel, there is a former Daily Planet worker seemingly attempting a suicide from the top of the building, Olsen recognizes the man and Superman soon swoops in to stop the man who is actually revealed to be Metallo. Pulling a twist on this event, what if Jimmy Olsen was revealed to be the fake out as a way to lure Superman into a trap in order to defeat him with the Kryptonite that Lex generates from Zod's recovered corpse?
This would definitely be a risky move for the film to pull, especially for such an iconic character, but we've had similar scenarios in comic-book adaptations (Batman Begins and The Dark Knight Rises being prime examples) and I think that this one could come out of left-field and completely surprise fans that were expecting Lex Luthor to be the only villain in this multi-hero team-up.
What do you guys think of this theory?