There will surely be much more to discover and explore, I may assure you. One of the renowned qualities of the Edain Mod is differentiation. Massive diversity combined with smart mechanics. Every side of note from the lore, books and films, gets the chance to be part of the game, in a coherent and comprehensive portrait. The sub-faction system you mentioned, exemplified by Mirkwood and other akin cases, embodies perfectly that differentiated touch.
Besides, above all manners and trivial words of greeting, I welcome you in the halls of our forum; a real sanctuary for all passionate admirers of Arda and BFME equally. What is still to be implemented in the project, as we deem, we propose in the suggestion boards of the forum, in which you may find all sorts of major concepts and thorough debates, comprising valuable suggestions of diverse guise. There are many of them and they just wait to be read