Who knows? For all we know, it could be a Thriller, or it could just be Bad. (shot)
In all seriousness, even though it's an obvious cash cow, how bad could it be? If it's like a 3D MMO version of Moonwalker, it might be kind of cool. According to the article, it's free to play, so you won't be paying anything other then the retail price. It might be neat to try for half an hour, but I don't think I'd consider playing any longer then that. But if I did like it, I may just Beat It. (shot again)
As for that Martha Stewart game, I have no comment. She's nowhere near as cool as the King Of Pop.