The format war has been effectively ended for a while now. But I don't think the SE, or anything Star Wars, would end it in and of itself, though it would definitly give the format a huge slant. In that case it would have been Blu-Ray, which has won the war anyway. The reason I say that it wouldn't really be as effective as, for example, on DVD, is because not a lot of people are even considering upgrading, let alone deciding which format to go with--most people are incapable of upgrading because the vast, vast, vast majority of people don't have HD displays yet (as opposed to DVD, where all you had to do in the 1990's was buy a player and you were set).