I lost track of this DLC but Warner just informed me it’s available now for download. Details below:
Warner Bros. Interactive Entertainment and DC Entertainment have confirmed that the Arkham City Skins Pack is available now in the Xbox LIVE®Marketplace for 400 Microsoft Points and for Games for Windows for $4.99. The pack is also available in North America in the PlayStation®Network for $4.99.
Included in the pack are seven skins:
· 1970s Batsuit Skin
· Year One Batman Skin
· The Dark Knight Returns Skin
· Earth One Batman Skin
· Batman Beyond Batman Skin
· Animated Batman Skin
· Sinestro Corps Batman Skin
Below is the video with real gameplay footage with the new skins. Batman Beyond is my favorite because he looks menacing without the big cape.