If this was indeed a Batman Beyond game, that would mean the younger Batman depicted in the art is Terry McGinnis- though if this was supposed to be an Arkham sequel, perhaps this was Damian Wayne.
Freelance concept artist Goran Bukvic has uploaded new pieces of artwork over on ArtStation, which seems to be a concept art for a canceled Batman game.
There’s also a younger Batman Beyond-inspired Batman who has a red logo on his suit, alongside red streaks on the side of his vehicle.
The artwork shows a grizzled Bruce Wayne, alongside what seems to be a new Batman sporting a modern Batsuit and technology.