Well obviously if my suggestion ends up being the winner, it will be up to future readers to decide. I was personally envisioning Marcus as becoming a cross between Jesus returned from the dead and Professor Xavier. A messianic Xman kinda thing. I figured if time travel had already been introduced there was absolutely no reason we couldn't be dealing with some kind of split reality here where Marcus is both demonstrably dead and also quite obviously living
RE: The story in series: Chapter Two