Man, what a loaded question! The 'Arkham' series holds such a special place in my heart, and 'Arkham Knight' felt like this grand, explosive finale—like the developers threw everything they had into it. The story wraps up so many threads, especially with that emotional showdown between Batman and the Joker's lingering presence. But here's the thing: Rocksteady themselves called it their 'last Batman game,' which makes it sound pretty definitive.
That said, the Batman universe is huge, and other studios have dipped their toes in with stuff like 'Arkham Origins' (which was a prequel). So while Knight might be Rocksteady's swan song, I wouldn't rule out someone else picking up the mantle down the line. The way Knight ended even leaves room for interpretation—like, what if the Knightfall protocol wasn't the end? Maybe we'll see a reboot or a spiritual successor someday. For now, though, it's hard to imagine topping that final act.