Consider: Maevris is romancable... but only for dwarf PCs. That said, I also think dwarf politics are going to come back into play, because we know they have a pretty strong presence in Tevinter; the new Archon's been elected and it's not likely that we're gonna have a repeat of the choosing a Divine/Choosing the Ruler Of Orlais [or Fereldan or Orzammar] but it's not out of the question either, especially if it's couched as 'Dorian's political group gaining power and the PC cementing it with this choice that ends up allowing us to free the slaves of Tevinter'. Outlawing slavery/staging a slave revolt is definitely going to happen though. With as much emphasis has been placed on Tevinter and its slaves, they can't not do that, because the opposite is forcing the player into condoning it. It might be built off the backs of Dorian's movement and Solas's, because it's set up like a custody battle of the elven slaves, but there's going to be something where we end up destroying the institution of it in Tevinter somehow, either via violent revolt or through political fuckery.