I am very disappointed in how little people are talking about goatplomacy. I realize there isn't a lot to say about it beyond awesome, but that isn't getting said enough. 
Some people on Tumblr are speculating that the Mage you can sentence to Tranquility is Anders, if he lived your game.
If that's the case, I definitely be trying that with a pro-Templar inquisitor sometime.
Would it even be possible to make Anders tranquil? I mean he has a piece of the Fade glued to his soul. Heck he can even temporarily untraquilfy other people. You'd have to remove Vengeance from him first, and that seems like it would be a rather involved process when you could just kill him instead.