Website IMGMR is reporting that Warner Bros. has registered new web domains for the highly anticipated sequel to Batman: Arkham City. Take this news lightly as IMGMR is a less than reliable source.
In other Batman Next Gen news, both Arkhamverse.com and IGN.com are reporting that a Batman game has been listed for the Xbox One and Playstation 4 at GameStop’s German website. The title only features the word “Batman” on it, with just a placeholder cover and shows the console logo. The release date is still unknown.  It is also unknown if this “Batman” game will be next gen version of Batman: Arkham Origins or the long awaited sequel to Batman: Arkham City.
The only confirmed news about an Arkham game comes from Kevin Conroy who mentioned at the Dallas Comic Con last year that he was working on the project.
Sources:
IGN
Arkham Videos