I don't know if I'm horrified or intrigued by this prospect. Probably both. Forget Harrowmont versus Bhelen, discussions are going to be heated up if it happens that the only way to get proper elven rights and equality is to support Petrice as the next Divine.
I know. Awesome, right? Though Divine might be a tad ambitious. Petrice might settle for, say, Grand Cleric and autonomy. 
But, more seriously, the closest thing Thedas has to an equal rights doctrine for western-ish understanding of human rights is the Chantry. The Circles are concerned with mage interests, the Templars with the mundanes, the various kingdoms with their own boarders and identity... but the Chantry preaches the only widely held ideological basis for equality. That all people, regardless of rank, and all people, regardless of race, are equal in the sight of the Maker.
If there was to be a political enlightenment for social equality in Thedas in the near future, I'd place more gold on it coming from the Chantry and via a religious-based movement than anything else. A Chantry that pressures anyone who hurts devout Andrastians, even (especially) other, 'bad' Andrastians.
It'd be a plausible reformation, and one that would challenge the players western liberalism impulses. Lots of players like racial equality. Lots of players dislike organized religion. But what if the primary advocate of racial equality was organized religion: what if empowering and enabling the people who wanted to make racial reforms also meant empowering and enabling the Chantry as an institution?
Forget the player preferences and grand standing and baseless boasts about how they'll change the world to fit their vision. If the the movement towards a state religion were tied to the movement for racial equality, and tied in such a way that they rose or sunk together, would you support or oppose them?
I think you could get good, morally ambiguous mileage out of that. But then, I think Tevinter would make an ideal and delicious fan tears/angst setting to play the rise of a democratic (mage-only, initially) Tevinter against a military state that breaks the privilages of the Magisters and makes everyone a soldier.