Dragon Age spoilers in this blog post, FYI. 
 
This week it was all Ferelden all the time. With Dragon Age II coming tomorrow I went back and played through the Dragon Age Awakening expansion, plus the Leliana's Song,  Golems of Amgarrak and Witch Hunt DLC. Awakening was a lot of fun. It was almost 16 hours of playtime for me to do all the quests except the special weapon item quests. The world changing decisions didn't come until the last hour of the game and I was wondering if there were going to be any at all. They paid off when they came though. I don't see how they're going to be able to continue the series of games if the world continues to have so many branching paths.  My guess is there will at some point be a "canon" decision that they will run with. They've already done it for Dragon Age II with the Anders character. It's possible for him to die in the epilogue of Awakening but he is very much in Dragon Age II. Now possibly he won't be in your DA2 game if he died in Awakening. That will be cool if they go with that route.  
 
Witch Hunt also has the same issue. After watching the endings of the different choices on youtube, it seems like what they're trying to lead up to could be completely different based on your choices. It makes me feel awesome to play the series because I feel I'm really changing the world but it makes my brain hurt trying to understand all the possible outcomes at this point.