Batman: Arkham Knight skins and missions could be exclusive to the PlayStation 4 only through fall 2015.
The bonus content included in the PS4 version of Batman: Arkham Knight, containing Scarecrow Nightmare missions, Batmobile skin, and two additional Batman outfits, will only be exclusive to the platform until "at least fall 2015," according to an Amazon advertisment.
The content will be made available to PS4 players when Arkham Knight will be released on June 23. It's not yet known how much the DLC will cost when released on the other platforms, or whether it will be made available for free. Right now the exclusive DLC is expected to be available on the PS4 from launch.
Sony also revealed a limited edition $450 Batman: Arkham Knight PS4 console-bundle yesterday, featuring a silver-grey design and a copy of the upcoming title.
Following its latest delay, Arkham Knight is expected to be released on June 23. The PlayStation version will run 1080p natively according to the game's PlayStation Store product page. At the time of writing the system requirements for the PC version are not known, and the resolution / graphical performance on the Xbox One are not yet confirmed.