Fans of the Batman: Arkham franchise of games are anxiously waiting for the Batman: Return to Arkham collection to make its way to the PlayStation 4 and Xbox One.

Those fans might have to wait a little while longer, though, because it seems that porting the games from the PlayStation 3 and Xbox 360 is harder than developer Rocksteady thought. Eurogamer reports suggest that the collection won't become available until at least November of this year. In addition, it's very possible that Batman: Return to Arkham will get pushed back even later, maybe even until 2017, if problems keep arising with the port.

These reports of this new delay come from multiple sources close to the development of the remastered collection, with suggestions that the biggest problem lies with bad frame rate issues on the PlayStation 4 and Xbox One versions of those games.

Batman: Return to Arkham, which includes Batman: Arkham Asylum and Batman: Arkham City with all DLC, was originally set for launch at the end of July, but Rocksteady recently announced a delay.

"After reviewing the progress of the project, the team at WB Games has decided to delay the release of Batman: Return to Arkham to give the team at Virtuos Games additional time to deliver a polished Batman Arkham game experience," Rocksteady wrote on its forums. "We do not have a release date yet and will be sure to communicate that once we are sure the game will be ready. We know this is disappointing news, but we feel the extra time will allow the team to create the best gaming experience for our fans."

Rocksteady understands that the port must work perfectly, or it risks angering fans of the franchise again, especially after the fiasco of the Batman: Arkham Knight PC release that left many fans unable to play the game. That PR disaster had the company offering refunds for those who purchased the PC version of the game, which remained broken months after its release. Later reports suggested that Rocksteady had focused so much time and effort on the console version of Arkham Knight that it didn't leave enough time for its team to adequately control the quality of the PC version.

Here's hoping that November is the final release date for Batman: Return to Arkham, but it's likely that Rocksteady will eventually push the release into next year.

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