I have read in several websites that there will be more info on Lily Evans in the last book. "Harry has his father and mother's good looks. But he has his mother's eyes and that's very important in a future book. Rowling has also said there will be more details about Lily in the seventh and final Harry Potter book, Harry Potter and the Deathly Hallows." Do you also think that Lily had dated Snape at one time? Maybe that could be another in which he hates Harry so much because he could have been his son with her. Rowling did say that Snape did not have a dughter but she never said that she did bot have a son.