Acheronian Temple Backside

Has anyone ever done a quest that brought them to the Acheronian Temple Backside? It is in the Achronian Ruins by the location for "Fire for the Dead" quest. (up the stairs. 419x462)

Is this something that is incomplete?
Is there a quest?
Was there a quest that was pulled? (Like "The Hunt")

Please let me know if you have done a quest for this area.

Discovered that entrance recently and i don't see which quest can be linked to this. Seems a deleted content.

This question popped up during beta as well. No content for that place ever reached any public builds, I'm afraid.