There is already a threat about this.
http://forum.modding-union.com/index.php/topic,31176.0.htmlTwo factions will come when all factions here, the most bugs and balance fixed and when the Edain Team has time at motivation to do it.
One piece of advice:
When you have a new concept you must say more to that.
For example for a new factions you must say:
-All Units
-All Heroes
-Heroes Spells
-Spellbook
-Buildings
-Upgrades
-Strength of the Faction
-Weakness of the Faction
-...
So it is easier for the Edain Team to do something with you suggestion