This was something that I mentioned in another thread, but I wanted to try to re-focus this one.
Would having a T rated game effect the stories and themes in ME in a negative way? Is many of themes of previous ME games still considered within the T/15-16+ spectrum? Or would some of those themes have to be toned down for the sake of the rating? And if so, would this affect the quality of the game overall, or would the impact be considered minimal? Where should the line be drawn in order for it to be a T rating?
Again, I'm not talking about the side boobs/butts, or the topless scenes in DA:I, or the blood, or the mostly PG-13 language. We've covered those and then some. The themes I think bare some closer examination. That [still] needs to cook in my hindbrain for a bit, so I'll my share my own thoughts when I feel like I can express them correctly.

Edit: I know that blood, gore, nudity and language can (and do) affect ratings quite a bit. I do think there is there's more to it, and I'm curious about the different opinions folks have on the themes themselves and how they affect a game's rating.
Not necessarily. Past games have gotten plenty dark, like the KoTOR examples given in the other thread show. I think even some of the darkest stuff in the Dragon Age games could squeak through, seeing as most of it was alluded to and implied, as opposed to straight up shown (case in point - how to make a broodmother).
It wouldn't ruin things, per se. And there would still be plenty of food for thought, for those inclined to think about things. So yeah, I think it could switch mostly unscathed, and I'd still play the games. The lack of such content would be a little jarring and unrealistic, I think, but hey - with a notable, Daggerfall-shaped exception, it was a good 20 years of gaming before I saw anything past PG-13 in a game. It's not like I'm not used to it.
It would still be a bad idea, and there are certain segments of the playerbase that regard Bioware as a care bear laughingstock as is (wholly unwarranted, of course, but lots of people are very dumb). This would not help matters, there.