I'm thinking of an idea for an alternate reality story. One that is almost a lock fic but not really when time catches up to its self.
It starts with the Wishing Sword situation and requires Akane to have a more annoying time of it. Between Kasumi's seeming perfection not having a problem with Ranma's underhanded actions to get the wish and Nabiki's overt attempts to make the wish profitable for her. Akane, fed up with the wish business says "You know what Ranma, I wish you had to find out what its like being little sister to these two!"
The wish is granted and Ranma keeps all his/her memories but is living a new life that has her as a full time female replacing Akane in history. Getting to know exactly what it would have been like growing up the youngest sister to Kasumi and Nabiki. Thing is they had Akane for their sister in reality so the memories don't exactly stick to history.
The idea is to grow Ranma's character after experiencing life as a girl from cradle to the present moment. What kind of changes will it lead to for events taking place after this point in the regular plot? I figure it has to have more impact than Kuno wasting the last wish on that Statue.
The presentation for the story I was thinking of would have Ranma relive life from birth in the alternate reality but a week or so will pass in normal life while we get glimpses to people reacting to the wish and Ranma being out of commission. After time catches up we get to see how this changed and more experienced Ranma decides to live her/his life.