I really don't think MS would, I am pretty sure they feel like the Wii60 thing is working well for them right now and they don't want to risk damaging their image being a "copycat" of their competition and especially not without doing it right (preferably better).
But more than that the reason it works with the Wii is because it is the basic controller and not just another peripheral. Developers likely wouldn't make much use of it unless the sales were amazing enough to justify it (which they likely wouldn't be). In general this is the sort of the thing that has to be planned from the start or it probably won't work.
Sony has some similar reasons not to do it as well.








