Mmm, I mainly was thinking about backstory. Merrill was a rule breaker, went against traditions, everything. As a player character, you can craft your character to what you want, but your Origin is already set in stone and they said we won't be able to play it. We don't know if we even get the choice for our character to be born in the city then decided to join the Dalish, but City elf can come from anywhere and everywhere. Even Surana can choose if she was born in an alienage or not. I'm still gonna headcanon my Inquisitor (she is gonna be Dalish) to be somewhere from a city but we don't know how much we can customize where our Dalish comes from and was raised, you know?
I expect something more akin to the ME backstories, truth be told. A bit of information, to give you an idea of why you are here, and then an objective in the introduction mission.
However, ME backstories are not The Elder Scrolls blank characters. Headcanon can go so far. For example, using the example you have mentioned, you may headcanon that your Dalish Inquisitor came from a city... then to have your very Dalish parents send you a letter from Clan Whatever asking you how things are going in your new job, or your Keeper remembering teaching you as a toddler, or your childhood friends from the clan turning up, etc. It's like when Spacer Shepard called his or her mother in a mission or the member of the anti-alien gang asked Earthborn Shepard for help.
Merrill's pride and messiah complex aside, the Dalish have their own limits on what they will accept and condone in the name of getting their history restored. Merrill passed them by some time ago in her obsession.
I'm not so sure the Dalish agree even on those limits. The clan from TME was doing almost exactly the same thing as Merrill. Even worse, because they summoned the demon instead of just coming across it.
I plan on basically making a Dalish Elf version of Toph from Avatar: someone who doesn't like all the rules of the Dalish and how it confines them, especially as a mage.
I ever have a slogan for that character. 

Tophquisitor would be awesome. And that attitude would make sense for a rebellious First.