I think some of you are putting too much stock in the choices made during the series, Dragon Age's choices never changed the ending in a significant way, what happens happens, it's only who does it that changes, even DA2, the rebellion happens one way or the other, your choices in the series changes how the story is told and who gets to tell it, not how it ends. I'm more worried that it might feel rushed from a story telling point like ME3 was, ME3 failed because they rushed to a conclusion, not taking closure for choices into account, the way it ended isn't the problem but how it was told was the problem. Any ending is a good one if you have closure, continuity and pace, conversely any ending is bad if it lacks one of these.
