Don't do it. Gatsby found out- "You can't repeat the past."

Look at some of the sequels that have followed classics, Superman III and IV, The Two Jakes (Chinatown), Gone With the Wind II(TV)... To me, they diminish the memory of the previous films, they are unnecessary, made soley to cash in on a legacy and they are doomed to a hostile and sceptical audience. Particularly given the time elapsed since pIII, which clearly did not cry out for a sequel. III only made money at all because of rentals. The best way to fulfill fans of the trilogy is to present the best version imaginable on DVD, which is already on the way. Coppolla, by the way, could always make another film about family or crime. Better that than to make films like "Jack" or something. Scorsese has gone to the well many times with similar-themes and resisted making a sequel except for "The Colour of Money", but that wasn't his originally. So just say no, Coppola