Okay, so apparently Batman v Superman will be even darker. Apparently there was a shot of the actor going to play Jimmy Olsen (Scoot McNairy) wearing green SFX socks on set. The answer is apparently that Jimmy Olsen will have been maimed during the climax of Man of Steel:
That's, uh... hmm. Wow."Scoot is playing Jimmy Olsen, but with a bit of a twist. Jimmy was injured during the battle of Zod vs Superman. His legs were pinned under falling building rubble and that caused him to lose the legs. He now walks with the use of two prosthetic legs." The source goes on to add "He doesn't blame Superman for it (his loss of legs). He feels grateful that Superman saved the world."