Now this will be my last post about this. (Sorry Edain, for all the DG posts:D)
But when playing as Mordor, i keep coming back to the same conclusion, that there should be 2 subfactions Minas Morgul and Dol Guldur.
Am i the only one that thinks Dol Guldur is strong enough to be an own subfaction of Mordor.
The movie might have been bad, but i think it gave us an army worthy Edain.
And now that we see the amazing work the Dwarves recieved. I think that in the future, maybe after MMs release, something similar could be worked out for Dol Guldur in Mordor.
And there certainly is enough material for it, even lore wise, there are a few things that would fit better this way.