Slight drift here, but wasn't the issue flying over the Himalayas why QF got the 767RR (22mins oxy as opposed to 12min on the GE)? If so then an A330 with 22min shouldn't be a problem either, depending on the restrictions/route of course...
And this might seem a silly question, but I do sometimes wonder why QF didn't palm the 767s off to Jokestar and use the new A330s on routes where they are gunning for Premium pax... the number of J class pax who complain of this very thing is astounding! Or is it because the managers don't really care about mainline any more and want to paint everything orange?