A wee bit of a proposition: drop the weird new names, keep simple, location-oriented names like in game number one (The Battle for Middle-earth).
I know it seems like something minor, but on this side I must say, I loved to play as Gondor or Rohan before, and it was kind of a turn off to play as the "Men of the West".
I do think you will agree with me or at least see my point: the creators of this mod have made fantastic work-arounds with Rohan and Gondor and even Arnor, as well as Mordor, Isengard and Angmar.
Lothlórien is extremely well-achieved, and I expect no less from the new "Imladris" or "Rivendell". Now I ask you, will you really go with this "Misty Mountains" stuff? Would it not match much better the rest of the factions to name it "Moria" and have Gundabad, Golbintown and Khazad-dum be the options?
The same applies to the "Dwarves": it would be sooooooo much better to see them named "Erebor", with the options being the Ered Luin, the Iron Hills and the Lonely Moutain. I hope to read what you guys think. Godspeed to this mod! And blessings to the modders!