You can call off the search for the hidden Batman: Arkham Knight room!
The Batman: Arkham video games are known for being stuffed to the gills with hidden goodies, such as secret rooms that clearly hint at the plot of the next game in the series. So with that in mind, you can't blame gamers for spending countless hours, days and months searching Batman: Arkham Knight for a hidden room that may or may not be in the game, despite Rocksteady Studios and Warner Bros. Interactive Entertainment saying over and over that it is the final game in the series. Thus, no hidden room.
Since gamers haven't given up on this fruitless quest, the game's director Sefton Hill made it abundantly clear on Twitter that there is no clues to their next project hidden in the game.
There's no hidden room revealing the next game as its our last Arkham game. Sorry if you've been looking. https://t.co/plj2fTdW64— Sefton Hill (@Seftonhill) September 16, 2015
Set one year after the death of the Joker during the events of "Batman: Arkham City," Batman is struggling to come to terms with the absence of his nemesis and the uncomfortable feeling that the pair shared a bond deeper than either could admit. Without the Joker's chaotic presence, Gotham's citizens have never felt safer, and crime in the city has dramatically declined. However, this gives Batman's enemies, including Penguin, Two-Face, and Harley Quinn, a chance to unite with the singular goal of killing Batman.
On Halloween, Scarecrow forces the civilian evacuation of Gotham City after threatening to unleash his potent new fear toxin. Batman tracks Scarecrow to a hideout where he rescues the imprisoned Poison Ivy, who had refused to join Batman's other rogues in Scarecrow's plot. Batman meets with Oracle, who identifies Ace Chemicals as the source of Scarecrow's toxin. Batman investigates the facility but encounters the Arkham Knight and his heavily-armed militia. Batman overcomes the forces and locates Scarecrow, who has transformed the entire building into a toxin bomb. Scarecrow reveals that he has kidnapped Oracle, and exposes Batman to the toxin before escaping. Batman inhibits the bomb's blast radius before he is confronted by the Joker.