So, I happened to discover a random little Ebon Blade camp in Zul'Drak which has been added on the PTR. It isn't present on live. It contains two NPC's, an Orc Death Knight named Tormentor Sipe and a caged and tortured Drakkari troll named Spearguard Du'mont.
A full album including the Death Knight's speech text: http://imgur.com/a/NynHJ
And for comparison's sake, the same location on live:
No idea what it's there for, just thought it was worth posting about.