Harley Quinn's Revenge was supposed to be the last DLC pack for Batman: Arkham City, but now Rocksteady Studios is teasing us with an image of Scarecrow on their twitter. Does this mean they have another expansion in store for us, or maybe just a surprise included in the Wii-U version that was announced at E3?

For now, we really have no way of telling other then these cryptic words, "And at the end of fear, Oblivion." I really have no idea what it means. We can be fairly sure though that Scarecrow will be surprising us soon with something. Keep an eye out for updates.