I am about to be a devil's advocate here... but it would be more interesting of Hawke sided with the Templars. 
Aaannnd... I want to say the Arish'tok (Might have butchered that.) returned with the book/relic rather than War. 
Hawke as Viscount. 

The Dalish clan unharmed, minus the death of the Keeper. 
Maybe have Myrill step in line as the next Lorekeeper after she learned about the demon in the mirror? 

I cannot give an exact for the Inquisition line. (I only made it to roughly 12 hours in to the Time Mage arc. Tevinter is pretty dickish, but god are they cool. Excuse me "Maker" are they cool.)