Batman: Arkham Knight is the up and coming fourth Arkham game and the third developed by Rocksteady. It's said to be the final game in the series, and the final Batman game that Rocksteady will make before they start working on other projects. Also, it's - to my knowledge - the first sequel to a series of games that debuted on the previous generation of consoles that will not be available on them; in other words, this game will be available only on the Playstation 4, the XBOX ONE, and PC. Anyhow, here's a video I made about the game. It's short and to the point.
I just uploaded it, so certain resolutions might not be available for a few minutes. I recorded it at 4K resolution (3840 x 2160).