Recently EA Mythic released new media showcasing a zone called The Bastion Stair. Brand new screenshots and a movie can be seen below, I must say this place looks pretty cool and the lore behind it makes me even more curious, this is a place I will explore with my friends for sure.
The foul winds whipping across the Chaos Wastes carry with them a faint charnel scent and tortured screams. Those who in their madness or lust for power follow the winds to their source will eventually come to the horned gate of the Bastion Stair, and gaze at last upon the insane creation of a violent god.
Erected by the malicious will of the Lord of Skulls, the Bastion Stair towers over a twisted and torn landscape, walls stained red with the blood of countless sacrifices. Stairs never meant for human feet climb toward burning skies where the vague outline of the Bastion itself can barely be seen, and beyond, the faint flickering light of the Rift of Rage. For it is the rift itself which draws both Order and Destruction to this place, a source of Chaos power with which the servants of Tzeentch could remake the world in the twisted image of their dark god... if the defenders of the Empire cannot find some way to close the portal first.