Twenty years after Akane's death (before the failed wedding in the normal timeline,) Nabiki happens upon a shrine in a beautiful valley. At this shrine, she is about to pray for her success at a nearby martial arts tournament, as well as the understanding to deal with her son's strange dreams, when she meets the shrine maiden. The young woman looks like a clone of Ranma-chan
It turns out to be Ranma-chan. Out of grief, she locked herself as a woman. Her manhood was buried with Akane. Nabiki learns what has happened to Ranma over the years, just as Ranma learns similar things.
This is Andrew Norris' idea. I'm only doing the first three chapters.
Comments: Amaranius@yahoo.com