I'd like a Mass Effect style RPG set in this universe.
Flying aboot on an Airship, various location around the British Empire, exotic creatures, levelling up weapons, branching story.
You know the kind of thing.
Not to mention a good tactical combat with your fellow knights using various weapons, Tesla's gadgets, and of course magic; facing all the classical creatures from gothic horror; and meeting all kinds of legendary people, not only from Victorian London but - thanks to that blackwater thing - anyone else from all the way back to King Arthur's age. And ME's storytelling was cinematic enough as well.
Too bad it would cost at least twice as much as this game did...