By the way, has anyone posted it already? As for the trailer itself, I'm a bit skeptical about Arkhamverse, considering that Kill the Justice League has already killed that universe and Arkham Origins was buggy as hell in addition to being a poorly re-skinned ROM hack of Arkham City.
On the flipside, it's hype as hell seeing Ratcatcher becoming the main villain after being referenced in Arkham Asylum and Arkham City.