From PSU: “It has now been officially confirmed that WB Games Montreal will reveal their long-in-development Batman game, Batman: Gotham Knights at DC FanDome on August 22.
The full schedule for the event has been released and at 18:30 BST on August 22 WB Games Montreal will have a special announcement of a new game and a Q&A with developers.”
Source: N4G PC WB Games Montreal's Batman: Gotham Knights Will Be Revealed At DC FanDome