The Ancestral Protector totem has been revealed today to be the Path of Exile: Ascendancy. Supposedly, there are going to be more of these Ancestral totems, each supplying a different benefit to a melee build. These Totems scale with your weapon and buff the player when nearby the totem.
When you place the Ancestral Protector totem, a Karui ancestor appears, bound above the totem. Unlike other totems, the Karui ancestor will only remain active while its owner is closeby. However, while you’re close to the totem, your own physical power is also bolstered, as the Ancestor grants more attack speed to its owner.