In the middle of wandering around at Skyhold I walked in on Cullen and Commander Helaine having a conversation. Went something like this:
Cullen: Of course.
Conversation was too brief for me to record in time, but it sounded as though Cullen was getting confirmation for something he already inclined to believe.
I'm wondering if this conversation occurs outside of learning the mage specialization, or because of it, because this is the first time I've encountered it, and Kianna has already learned the Knight Enchanter specialization. So the conversation may be the result of that, and the person Cullen vaguely mentions in the conversation could be the Inquisitor (which I'm down for because of the way he says "of course" ohohohoho).
But if not, then who the hell is he talking about? Meredith? Vivienne? Someone else?