Would be a mistake (Score 1)

If they decide to go through with this, I think it would be a big mistake. Although the game looks great from the screenshots I've seen, they'd be in trouble if they made online play cost extra. Traditional MMOs justify ongoing payments by having servers support thousands of people all together at once. The other big selling 'heavily instanced' games out there have set the precedent on this one: Diablo (1 and 2) and Guild Wars. Neither of these two games have made you pay anything more than the price of the box (and subsequent expansions). If they want to buck this trend they'd better have something pretty impressive up their sleeve, or people will stay away from this game like the plague.