Batman: Return to Arkham will apparently be held back until November, if a report by Eurogamer is to be believed. The game was originally supposed to launch this month, but was recently delayed with no new release date.
The main issue with the porting of the games to both PS4/Xbox One appears to lie in the frame rate. Chinese developer Virtuous Games are apparently having major issues getting the game to run at a solid 60FPS, which would be one of the main reasons that gamers would want to pick this collection up.
Whilst November is currently being thrown around, it’s quite potentially that the game will get moved to early next year. Any time in Q4 will be a tough ask for this game. A July release date would have suited perfectly, with almost no other major releases happening this month.