Batman: Arkham Knight - 10 Huge Things We Learned At E3‏

3. The Playstation 4 Will Get New Content First

Much like the exclusive deal Xbox has for Dragon Age: Inquisition's "Premiere Content", the aforementioned Scarecrow Nightmare Missions will be Playstation 4 exclusives. There wasn't any more than that really, so we don't know if there will be any further content that's just for PS4 players, or perhaps the Xbox version will get come complimentary DLC that's equally exclusive. What we do know is that the footage of Arkham Knight we saw at E3 came from the PS4 version (since it was unveiled as part of Sony's presentation at the conference) and so everything we've been enthusing about with regards to the game in this article has been on that console, so between that and the promise of more awesome Scarecrow's levels, it seems that Sony are the go-to for your pre-orders.