So, we find out about DLC for one of the biggest games of the year so far... via a comment on the PlayStation's EU blog. Yes. We do.

"The two additional (Arkham Asylum) packs are coming in the next two weeks, one per week (Insane Night 17th Sept and Prey In The Darkness 24th Sept)."

So says, Mike Kebby of the PlayStation Store Team, SCEE.