Well, Garrosh had to kick the Forsaken out of the Horde somehow. And in the latest trailer he pretty much said, "The Horde is only Orcs now."
With the Kor-Kron in Undercity, its highly likely, the Forsaken were just taken prisoner if they were not in Pandaria.
If they reveal that....my character is going to be after Garrosh's head for taking his HOME, his QUEEN hostage.
When I first saw it, I didn't like the darkness, as it puts the Banshee Queen in a bright light, and she is not a bright character.
But then it suddenly clicked that I was a capture picture, (I didn't see the handcuffs at first), and that makes sense... your trying to make the Horde darker then the Dark Lady.
I love both the lack of eyes on the Orcs and the slight smile on the Banshee Queen's face. Like she cares nothing about being a prisoner. Like she knows whats coming, or she is waiting to spit in Garrosh's face before escaping.
After the Battle of Wrathgate (google it, you will see a lovely cinematic) the Orcs have a lot less trust in the Forsaken, even though the Banshee Queen had nothing to do with the event (I call bullshit, but that's lore) and the control that Sylvanas has over her people.
Thus, she and the Forsaken are watched by Kor-Kron guards, instead of Abominations.
How this will change things, after the fall of Garrosh, I don't know.