Yeah I believe that seen was going to be the passing of power between Michael and Vincent. Like the scene that was cut for the original Godfather where Michael and Vito are in the garden. I devised this after seeing the trailer for Godfather III, which most of it were scenes that weren't included in the actual movie. hehe
"What? Did you go to college to get stupid? You're really stupid." - Sonny to Michael (G2)