This is a Catch-22 entirely. Yes, I'd like a female villain. But no, I wouldn't like one written in the way that Bioware has written Villains (not just female villains) since Origins. If there's to be a female villain in any future Dragon Age game they need to be as complex as a Loghain or any other very well written fantasy villain. And, honestly, it'd be pretty easy with the Matriarchal (swear to god, misinterpret this and I'm done) structure of at least Fereldan and Orlais to get someone with a lot of power who could abuse it for the "greater good". I'd like that. But I don't need it. I prefer to play the woman undoing all the evil. Or travel alongside them. Doesn't matter to me who that evil is, as long as I get to stab it at the end of the day. Or...spare it if I think they were justified enough.
In the end, while I am ALWAYS for equality in video games. And, even more honestly, am bored with the state of fantasy writing as it was (and many people are taking issue with). All that considered, I don't want representation for the sake of representation. Especially if the writers are going to screw it up. It needs to come organically from the plot.