Please do a full review of the Demon Hunter now that the demon threat is more or less gone and do a full remake of the class. Maybe allow Void Elf to be Demon Hunter and add a Void-inspired talent tree? Also make us choose color of the attacks to change the old fel-colored attacks to be a new color (if you choose) such as void/shadow colored.
You added a third talent tree to Evokers, now do it for Demon Hunters.