I've been trying to come up with a "The Godfather, Part IV" script for some time. My idea was that Vincent has now moved all operations to New York and wants a piece of the action of Atlantic City gambling. The retiring Don of Philadelphia agrees to sell his Casinos to Vincent, this angers the young Underboss in Philadelphia hoping to inherit those casinos. Don Stracci, very concerned that the Corleones would take over Atlantic City makes a deal with the Philly Underboss to kill the retiring Don before the deal is complete....that's all I got so far.