Hrm, interesting. Oddly enough I have been developing a concept (over the last couple months) for a medieval 2 mod that sorta has the same idea. However it goes a little farther back in setting up the factions. I've actually written alot of the new history already and developed alot of the equipement. For instance here is a drawing from about 3 weeks ago:



I was alittle worried that my unique idea was now out in the open and I would have to work with someone else with a competing vision. Now I am wrestling with announcing an actual mod or still staying quite.