My version of the clan wasn't full of angst. 
There's a little for Nirwen since she's the eldest and a lot of stuff kind of falls on an eldest child. And she went and fell in love with her best friend, which of course, has some cultural tangles if she chooses to continue, which she does.
Other stuff, like the Conclave, and her sister's complicated feelings when Nirwen returns, after seeing her off with the man she was to bond with, with no vallaslin and mystery power, alongside a Tevinter and a spirit who talks oddly, these are direct results of game stuff. 
then of course, she comes back post-Trespasser. With more baggage and things to worry about and a new purpose.