Batman Arkham Knight Update, Release Date: Batman Fights New Foe - Who Is Arkham Knight?
Batman fights a formidable opponent who knows his every move in "Batman: Arkham Knight," the latest video game in the Batman: Arkham series. It will be released worldwide on June 2, 2015.

The fourth game in the series will feature Kevin Conroy reprising his role as Batman, a superhero who is both mentally and physically agile and highly trained.
In this instalment, James Gordon, the police commissioner, and his daughter Barbara, the computer hacker, will also make an appearance. As usual Batman will face a number of villains in the upcoming game.
But what stands out is his confrontation with the Arkham Knight, who is described as a "Doppelganger" of Batman as he appears to know every part of Batman and how he operates.
The masked Arkham Knight is well built and fully clad in armor. He is capable of defeating Batman without any help from the other villains in the game using his weapons. Apparently an original character created for the game, Arkham Knight has the letter "A" on his armor, which is thought to represent Asylum.
As for his motives for opposing Batman, they are not clear.
The identity of Arkham Knight has become a source of speculation among fans of the game. The makers have not revealed any clues about it. This has led fans to speculate that he could be Bruce Wayne's father Thomas Wayne. His death is featured in a number of dreams that Batman had in the Arkham Asylum game, so he could very well reappear as Arkham Knight if he is still alive.
Other fans say the Arkham Knight could be a robot, or the Joker who somehow managed to survive his death in the third game Arkham City. WhatCulture has shortlisted 10 people who could be the Arkham Knight. In the list is Hush, Jason Todd aka Red Hood, Azrael, Deathstroke, Damien Wayne and Thomas Wayne.