It will be interesting to see if change in the materials would have effect on the quality of the sound quality at all. Highly doubt it'll be that much, since I don't think they are changing anything besides it. That's a good thing anyway, since it sounded excellent to begin with.
Meanwhile, Mine keeps trucking along without any problems... use it about twice a week as my second mistress of sorts

and love the airiness, accuracy and comfort of it. Just wishing now that I could have a mic so that I could use it with my iPhone better (perhaps when there's the better version out, I'll buy the mic version and sell my current one).