I've beaten the game on several characters now and have a few at VR14. I decided to do something different with one of them (AD Alliance) and release prisoners from Heart's Grief (except for Mannimarco as I already heard from others what happens when you release him but I'll list it below anyway.
I released: Aelif, Javad Tharn, Prince Naemon, and the Duchess of Anguish.
Aelif: Screamed: Master, no! Then she turned into a Bloody Skeleton to which you fight and kill.
Javad Tharn: He hunches over out of breath and says "Thank you, Uncle! You won't regret this!" He then turns to a bubbling blob of ooze and disappears.
Prince Naemon: He screams: "Not like this! No! No!" And then poof, vanishes
Duchess of Anguish: She stays herself and you fight her. It was satisfying to whoop her butt all over again.
I didn't release Mannimarco but it's been said he says to the player that they will regret it and then vanishes via magic. I'm glad I didn't because I would have wanted to kill that vile scum all over again.
I hope that helps for any curious and if you have done this via the other alliances or have any other character choices to release and have done so, feel free to share with spoiler tags of course for those that don't want to see it by mistake!
Edited by ThisOnePosts on October 14, 2014 7:22PM