Hello. First of all, we already have an existing thread that deals with this game, but you were right in opening this topic, provided that we link the whole debate with Edain-based content (as you did). Only within these boundaries can we enable an on-topic discussion, while the other thread is focused on the game itself.
On the matter, I confess I'm not very much familiar with the details of the topic, although I do have knowledge of a few 'controversial' aspects. For the sake of the debate itself, I thus suggest you list the main points that you deem worthy of being considered, in regards of the lore and of the propriety of hypothetical implementations from this source; that would certainly contribute to order things more clearly. Nevertheless, I have to say I'm quite sceptical about this kind of inclusions, given that very serious issues concerning gameplay could arise: how could one add many more elements in a quite already-consolidated context? This is not saying that major modifications are not conceivable, as the Edain Mod is always being improved via diverse means, but the problem is to discern whether this typology of changes are suitable for the very Mod in the first place.
And, of course, here we come to the lore. Believe me, I'm personally very much open-minded regarding new alternatives, due to my conviction that the vast lore should be seen as a coherent ensemble of customary interpretations (which can imply different versions); but certain relevant limits should not be disregarded too. This is not a matter of being a purist or not. It's just, in my opinion, trying to keep the Edain Mod as much consistent as possible, if we take into account the fact that the lore and the canonical cinematographic sources are simply paramount in the game (the addition of fictional material becomes therefore a very sensitive of a subject). Let us refer to Celebrimbor as an example, being him one of the prime characters involved: having him wander around as a loose spirit is a violation of the canon that could hardly be reconciled with the Edain Mod's principal characteristics and essence. I may have picked an extreme case as a reference, but that should give the idea of what I was talking about. Anyway, I'm interested in what this discussion is to result in