Speaking to the question on whether this Eve doctrine has ever been retracted...I have never heard a retraction. I think it has gone the way of many fallacious Watchtower teachings. They are left unrepeated and they seem to fade. But I know people who still have stock in this belief. I also remember as a kid this talk being all the rage. Particularly in 1976 JWs had many questions. And this was the explanation given. I remember a Bethelite coming by our house as a kid and explaining this to me, drawing sketches and timelines on a paper napkin. I believed it of course, I was only ten years old.
tsof