Well, it's not like SP games have to be set completely "right" (I mean, they do fall under "not a FG" category, so let's use that as an example). There, the most ridiculous crap still flies because everyone plays however they want anyway, and people who are in for universe, aesthetics and such are at home there. My personal favorite example would be Witcher series. As far as combat mechanics go, the third was mediocre at best while the previous games thoroughly sucked* in that department. And it's still very successful, I even would say that the third game can easily get on a personal list of the best games they have ever played of many people, myself included. * - this massive disappointment is exactly what made me go out seeking games with better combat, making me stumble onto FG genre eventually. And so I am here. Still, if non-FG MK game will be ever made, there's a chance that it won't be NRS who will be busy with it. I don't know about exact relationship between NRS and WB, but I don't think WB absolutely cannot assign the project to a studio with more experience in whatever genre the game will belong to. Ofc someone from NRS will probably supervise lore, design and other stuff like that, but still.