Official confirmation still pending.
Warner Bros.’s Batman: Return to Arkham, featuring remasters of Arkham Asylum and Arkham City, was originally supposed to release in July for the Xbox One and PS4. However, it was delayed to allow for further polish – no doubt to avoid another Arkham Knight-like launch mess – with no indication of when it would officially arrive.
According to UK retailer Base though. Batman: Return to Arkham will be releasing on November 25th. The retailer has leaked correct release information in the past (like The Elder Scrolls: Skyrim Special Edition) and seems in line with rumours stating that the game would arrive by November.
Regardless, take this all with a grain of salt until an official announcement arrives from Warner Bros. Batman: Return to Arkham is being handled by Virtuous Games, the same studio which brought Heavy Rain to the PS4 and Final Fantasy X/X-2 HD Remaster to the PS3, PS4 and PS Vita.