To those of us who have grown up with the OT, the 20th Century Fox logo and 'fanfare' were an intrinsic intro. to the movies themselves. So much so, that it kinda seemed as if the short 'fanfare' was truly a part of of the overall experience - especially since it was actually included on the official soundtrack scores.
The prequels I couldn't care less about, but seeing as the 'fanfare' was such a seamless lead-in to Williams' actual main title theme, then the same equally applied to them too. For those of us who have re-watched the Star Wars movies many times, it will seem somewhat jarring to see and hear a different lead-in to the main theme in future releases/tv showings of them. It would have been neat to still hear the lead-in 'fanfare' cue *no matter* what logo(s) are to be used now...
Still, the only versions of these movies which I personally intend to re-watch are *fan edited* ones which will have the 'fanfare' and logo in place anyway. And I guess I can always attach it to the front of the next chapters too, if it's absence bothers me too much. :)