I have heard that some who say they are experts on the subject expect blue eyes and blond hair to die out almost completely in a few generations. Not sure about that myself - recessive genes are still there. What I have had trouble grasping is my great grandfather's situation - he was brown-eyed, while his father and his father's wife (supposedly his mother) were both blue-eyed (but then again his father had a reputation for having children by women he wasn't married too and then ending up raising the children, and family lore has it that his father's wife was not his mother, but that was all CW era, so who knows?).