POSSIBLE HUGE SPOILER ALERT: We may know how Breaking Dawn concludes. Because the final installment of The Twilight Saga will be broken into two parts, producers had to find a way to break up the films in a suspenseful manner. According to someone who read the script and then spoke to a Robert Pattinson fansite, writers have come up with a way to do just that. The Volturi will confront the Culle…