The houseless elves struggle idea is a cool one. Lots of chances for angst and profoundness and epic clash-of wills-ness there. But, I don't think, if we have the evil feas, that we need Easterlings. We could concentrate more on the struggle between the feas, their hosts, and other elves. There's all kinds of possibilities there. (the one that came first to my mind was kinslaying
) That's story enough. Plus, that way, we could have more houseless spirits, which could go away when Celeborn and Galadriel throw down Dol Guldur.
As to the Mirkwood and Lorien elves: Well, if we're going with the idea of an envoy or a patrol, then the multiple storylines would be fun. If we mix in the evil houseless elves, then it might get far too complicated, and a single type of elves would be better. Either way is cool.
P.S. Not at all, Fordim.