Batman: Return to Arkham, a compilation pack that includes the remastered versions of Batman: Arkham Asylum and Arkham City for Playstation 4 and Xbox One, will release in November at the earliest, according to Eurogamer's multiple sources.
The game was supposed to launch on July 26, but back in June, Warner Bros. Interactive Entertainment confirmed that it was indefinitely delayed due to frame rate and performance issues the port is having. The port is being handled by Virtuous Games .
Take this as a rumor for now, but it will most likely launch after Summer ends. You can watch the announcement trailer below: