Batman: Arkham Knight will be released on 24th February 2015, according to Microsoft's official online store.
The 24th is a Tuesday, the day games usually release in North America, meaning that we'll likely see it on Friday 27th February in the UK.
If correct, it would be the first time we've heard a release date for the game since its recent delay from this autumn into next year. It would also put Batman up against The Witcher 3, which is set to release during the same week.
US customers can currently pre-order the game via Microsoft's site and receive a $10 Xbox gift card.
When questioned about the date by Eurogamer, publisher Warner Bros. simply stated that "Batman Arkham Knight is due for release in 2015".