Board Thread:General Discussion/@comment-1970092-20130728171233/@comment-11477779-20130729051453

I think you're reading too much into this one. Ichigo states the Final Getsuga Tenshou was him becoming Getsuga. In his bankai state his Getsuga attack was black so it's no surprise that AS Getsuga his hair was black too along with the reiatsu he was giving off. The length of his hair just seems to be a power motif. Both Aizen (final state) and final Hollow Ichigo sported the long hair as well. The only similarities between Yhwach and anything else, was the one with (Quincy)Zangetsu which we know to be intentional now. IMO