I would settle for side content like MK9's towers but more side-story focused. Flesh out little things for those who want to do it. I like Deception and Armageddon more for how vast and diverse they made the MK world feel, while all being theme appropriate, rather than their 3D gameplay or exploration. Where else do you get to hear an outworld commoner or someone else unimportant give their opinion on the realms lol.