Maybe it would be a smart move for FC to use their mastery of the Unity engine to provide just that, a solid, easy to use construction kit and framework for modders of turn based games, then use KS once more to develop the "JA:F content module" for it. And if that works out well, they could start making a plethora of series of differently styled and themed turn based games on that foundation for quite some time, whilst carefully and continually evolving and updating the tools.