There will be a game called Dungeons and Dragons Online, but I don't call it D&D. For one, it's set in Eberron - which might be a great new campgaign setting, but it has too much weird stuff for the quintessential D&D online game. It should have been set in the world of GreyHawk, maybe the Fealms.
Also, it will ditch the D&D magic system in favour of Manna, and will not have all races present in Eberron (not even all the core races are there), and the core classes will be incomplete as well. And while telling you all that, they actually manage to tell you that they will be faithful to D&D and keep a straight face.