The first story-driven add-on for Batman: Arkham Knight—“Batgirl: A Matter of Family”—will launch on July 14 for Season Pass holders and July 21 for everyone else, Warner Bros. announced. It will cost $6.99 if purchased separately from the Season Pass.
Here is the full synopsis:
Batgirl: A Matter of Family will allow players to take on the role of Batgirl for the first time in the Batman: Arkham franchise. This exciting story add-on features an all-new location with multiple missions, side quests and secrets; a new hacking feature to progress through the world and solve puzzles; and Dual Play functionality with Robin for dynamic take-down maneuvers.
The Batgirl: A Matter of Family add-on content was developed by WB Games Montréal and was created using the Batman: Arkham Knight engine built by Rocksteady Studios. The remaining Batman: Arkham Knight Season Pass add-on content is under development by Rocksteady Studios.