User blog comment:TheDarkKnightHasRisen/Batman: Power of Fear?/@comment-5229286-20120809180236

So the three main antagonists of this would be Scarecrow, Hush, and Ra's al Ghul. I like that trio. This is what I think each one of the villains would be doing

Scarecrow-Crane, angry at Batman for the incident back at Arkham, is making his making his return. He has developed a new fear gas, one that spreads quicker and is a lot stronger. He is trying to spread his fear gas thorought Gotham, causing as much chaos as he possibly can. He has allied with Ra's al Ghul and Hush.

Hush-Allied with Crane and Ra's, Hush's main objective is to get revenge on Bruce Wayne/Batman. He is bieng used as bait by the Scarecrow to draw Batman out.

Ra's al Ghul-Ra's is basically making his come back from Arkham City. He is teamed with the Scarecrow to try and destroy Gotham, believing that it cannot be saved.