im not sure about having a gf4, if it was done right, id be all for it, but since Mario Puzo wouldnt be in on it, id have to say no...

but instead of gf4, how about having a prequil(sp??) like their doing with star wars, id prefere that to any gf4 that just had flashbacks. do the whole story based on vitos sire after killing don cicci. of course you would have to cast completly new people, i doubt people would buy it if deniro played a "young" vito.