If it adds a new origin, then it might not just be a new character. Yes, you might have to play that new character as a sort of separate game, but you may be able to start a new normal campaign with that new origin.
If it's a true expansion, it may also be a new expansion that involves adding more gameplay options, rather than one that adds a lot story- and dungeon-wise. Sometimes, new gameplay can really make the whole game seem fresh again, though I will admit for an RPG, I'd prefer more story, dungeon, and dialogue to adding to/changing the gameplay style (hard to word that to make sense...).
It could also be that if this is an expansion, the new playable character is a new NPC added to your team. Or it could be that there's no expansion coming at all. As others have mentioned, Bioware has yet to announce anything, which, if they were releasing it as soon as March, it would seem that they would have.
Modifié par Brass_Buckles, 01 janvier 2010 - 11:22 .