User blog comment:Pseudobread/E3 2013: Ask your Akrham Origins questions here!/@comment-5977347-20130607225058/@comment-1520028-20130609183616

1- We don't know

2- Not confirmated, he is a villain, but there's no confirmation of he is one of the assassins

3- Joker, Anarky, Penguin, Deadshot, Deathstroke and Bane

4- They have said it would be like Mr. Freeze boss battle in AC, but I hope to have more types of boss battles