We have a statement from Warner Bros:
"Batman: Arkham Knight will be available as both a physical and digital release for PS4, Xbox One and PC. In the UK, PC will be available as a digital release only."Take this with a great big grain of salt for now, but according to some people on the internet, the heavily anticipated Batman: Arkham Knight won’t be getting a physical release on PC – at least in the UK. That’s the word from prolific, and prolifically cheap UK e-tailer ShopTo, who’s said that they’ve been told by their suppliers that the game will only be sold digitally.