Blizzard has posted a preview of Vault of the Incarnates, coming out next week!
The Primalists breached the Titan prison used to hold the Incarnates for millennia. Within, Raszageth performs a foul ritual to unleash her siblings so together they can purge the world of the Titans’ influence. The champions of Azeroth must assault this impregnable fortress and break their defenses to end this threat.