Rumors and reports out of EA says they are backtracking on forcing multiplayer into every game, and going back to encouraging studios to make games that players want and that the studios want to make. I take this to mean, IF TRUE, that Bioware doesn't have to put MP into a game anymore, and can go back to making single player focused story strong RPG games.....if true.
So not including MP maybe as simple as they no longer have to do so because EA says so. They really don't enjoy making that type of game and want to expend their resources on the new Dragon Age, next Mass Effect and refining the stories in all future games. Yeah, they COULD port it over, but they just don't want to and no longer have to so they aren't.
edited to fix a nasty run on sentence....typing train of thought isn't always a good idea......
