Some of you probably have already seen in the Arkham Nights description the bullet point:
Preview an exciting upcoming title in this horrific setting...
So, that being said I'm sure a ton of people will hate on the idea but will be secretly thrilled, how cool would it be for a Battles of Arkham (a BattleLore game). Along the lines of the recent Battles of Westeros? Or how about an official version of a mixture between the existing board game style and a paragraph adventure like the Arkham Investigators mod?
Or, please oh please a Silver Line game that is solo play or co-op. Something small enough for lunch hour at work. The mind reels at the possibilities.
Of course it could just be an expansion for either the BG or the LCG I suppose though the wording suggests otherwise. Is it October yet?