User blog comment:James12708/Possibility of a Mass Effect 4/@comment-101.161.42.220-20120714085208/@comment-857026-20120715234514

The first contact war was about 30 years before the events of ME1. So as to say, Shepard's "ancestors" would be his/her parents. I wouldn't mind seeing a game about the Prothean's Metacon War, which inevitably brought them into contact with the Reapers.