this fic idea went to me by reading another SM/ranma xover where the story was in the silver milenium era, and Queen serenity was very Nodoka like...
in this story, nodoka is queen serenity reborn, which make ranma 'sort of' usagi's brother through reincarnation (her being the reincarnation of the daughter of serenity, him being the son of the reincarnation of serenity).
only special thing to mention is that, after reading SM manga a few times, I saw that the silver cristal doesn't seem to be a single artefact but MADE from the soul of the serenity descendant, meaning nodoka/serenity still has hers, while both usagi & chibi usa has theirs...
since I don't want to reveal ALL the plot at once, I'll keep a few things to talk with the peoples who may want to write/rewrite/continu the fic
there'll be opportunies for "ranma in a fuku" but in my own plan for the fic, it'd only have been for a scene (but a chapter-long one, maybe with a clifhanger if the scene is split between 2 chapters ^^)
the base plot : this story will happen AFTER the great ice, when people having survived the ice start to wake here & there, ranma will not be ok with the "cleansing" and so will work against the senshis, some of the NWC will help him, others will fight against ranma. Ranma will have his own "silver cristal", but it'll have been tainted by the last dust particles of the Chaos Seed (destroyed by Sailor Cosmos at the end of SM canon),in the long time frozen in the great ice, and it'll have mutated in a sort of mix between the silver cristal and the Chaos seed of sailor chaos, hence the title : Silver Seed of Chaos
to now, someone want to write this story ?


