Considering how Bioware has creative goals they want to achieve with their games aside making money which seems to be the only purpose of Blizzard, I would think that they could be far more succesfull.
The thing is, Bioware probably wont aim to make the game an addiction. They will actually just try to entertain players instead of creating some sick addiction that has many house wives and little kids hooked. They might actually aim to make it something of a challenge.