I doubt we\'ll see d&d in a MMO for a while, Wizards owns the copyrights now, which means that they\'ll want money for it\'s use, even if it\'s just the rules...
I think it was electronic arts they had doing a 3rd ed mmo, but EA keeps shelving the idea, then going back to it, shelving then going back. From their general attitude, I\'d have to say that they\'re never going to publish, afraid of the parents that say that D&D players are all devil worshippers.