Board Thread:WARNING - SPOILERS and FALSE INFO AHEAD/@comment-11853952-20130716233701/@comment-5080035-20130724185000

I think the black eyes are a sort of upgrade to the blue eyes. When a werewolf takes a single innocent life, their soul darkens, causing their eyes to turn blue. I think if a werewolf takes enough innocent lives, their soul will darken to the point they have black eyes. As an addition, I think that Black is the true eye color for Demon Wolves, Alphas who killed their packs to absorb their power. The fact that their eyes are still red is just them not tapping into their true potential.