MMOs, as many people have already pointed out in various threads, are primarily designed to keep people playing -id est, they grind and grind and grind-, so it highly unlikely that a plot like that found in either of the original games could be made without it feeling shallow and forced. That aside, the very fact that it is an MMO means that it will, in all likelihood, be targeting that audience and not the one that bought the other two games - something else that is a strike against it. Of course, there is more points i could bring up, but that should be enough for now.