There was no home for Void elves and Alliance invited them to fight with Horde under one flag. It will change their mind, but it still possible to control void energy. But he and his followers already started to transform in new creatures, obtaining new dark power. When government of Silvermoon know that - they immediately stopped all Umbric's experiments and closed doors of main city of blood elves forever. Once Umbric from blood elves started to appeal with Void power. On Foxstore you can buy Void elf race unlock boost and one of them are new followers of Alliance, leading by Alleria Windrunner. To add this race for your account you have to do achievement, that includes quests, scenario and final reputation with Argussian Reach.
