No, we can't do that! Because we are 'mericans, and that just aint cricket! :-p

At some point all the currencies will be priced in bitcoin. (or some other thing that shows up to become the standard, and it could be some agreed upon metric)
The dollar, for now is the world reserve currency. And so, i don't think we will ever see it priced in Euros... accept in a list of prices in Yen, Yuan, Euros...