LADY SHIVA: She's obsessed with being the best martial artist/fighter in the world so she might take such a job to take out Batman to really test her skills. She's also beat Batman on many occasions, and the rest of the Bat-family as well. Getting money along with the rep. and the pleasure probably would sound nice to any assassin. And though I don't think that David Cain will be in here given his origin with Batman, (One of his many mentors) Having Lady Shiva in here would make a perfect chance to put in a Cassandra Cain easter egg.
BANE: Having Bane in here, to me, is pretty obvious. I mean, he's a hired gun, an assassin for sure, and he hates the Batman. WB Montreal did say that Batman will be encountering many villains for the first time that play key roles in his rogues gallery now, so Bane also fits that hint too. NOBODY: With Nobody, it won't be about rep. and bragging rights like it is with Shiva, Deathstroke, and Deadshot. No, with Nobody, it's severely personal. See, his father, Henri Ducard, is another one of Batman's old mentors. Morgan (Nobody) always resented Bruce because he felt like he took his father away from him and that all the lessons he taught Bruce, he should've taught him. When Morgan failed to take Bruce down, Henri shamed his own son for not being able to do so.
BLACK SPIDER: With Black Spider, it could get very interesting because in the comics, a mercanary-assassin is the only way to describe him, he's a career crook, but he doesn't see it that way. He sees Batman as his foe, and that's it. Having him be one of the assassins could be very cool. Besides that, I can't think of anyone else who is good enough to even try to take on Batman as an assassin.
