You may well not like the ones I list, as I tend to believe the government knowing their identities would preclude almost everything we know of Sailor moon future and not be a pretty sight.
The below is a dark fic... Japan, whom had kept secret it knew the identities of a lot of people whom had unusual pasts, like senshi, and nerima wrecking crew, etc... proceeds to ditch them by forcing them or kidnapping them and throwing them on sleeper ships and exiling them. Knowing the Senshi could teleport in certain combinations, they assassinate just the ones that could complete such a teleport. it is sadly not on his FF.NET profile. I think the only place it might have been was Shinji's Sharing
RANMA-MULTI 'Haven' by John Tannius - [Dld Date=06/04/2006] - [Dld Size=61kb] - [Dld File Cnt=3] - [Dld Status=Inactive]
Another dark fic. though one that escapes my memory at the moment. The senshi attempted to get rid of Ranma, instead abandoning him to the wastes in Wheel of time, he comes back far more powerful, and insane, and proceeds to start assassinating senshi for what they've done to him. He returns right at their decision to unveil themselves.
The below is a multi cross on the AA that really is pretty slick in that it fuses Ranma, Stargate, and Sailor Moon. SGC learns of the sailor wars after Ranma rescues Hotaru from the Gouald, which forced her transformation. They seek out these other senshi, and learn of a much longer chain of events across the galaxy while helping some of them come into their powers and help fight Youma.
RANMA-AA 'No Tendo' by Multiple - [Dld Date=09/26/2013] - [Dld Size=3140kb] - [Dld File Cnt=362] - [Dld Status=In Progress]
Another one I liked is the below, which Daniel Gibson actually wrote as a very large multi-arc sidestory to his Sic Semper Morituri story. Has his ACC and Asuka from NGE dumped into a combined Ranma/Sailor moon universe. after failing to help them live after Beryl , events in canon play out regarding their reincarnation, until those two meet back up with them, joining forces with the Japanese military, whom know of their identities.
RANMA-MULTI 'Sailor Jupiter - Pilots in Nerima' by Daniel Gibson - [Dld Date=06/10/2012] - [Dld Size=2398kb] - [Dld File Cnt=6] - [Dld Status=Complete]
This next is without question one of the more odd ones. in a combined universe dealing with Hellsing and Sailor moon, Usagi gets turned into a vampire, and Iscariot and Hellsing finds out. And Jupiter knows Anderson.
SM-MULTI 'No Life Queen' by Chaos Lord - [Dld Date=06/29/2010] - [Dld Size=584kb] - [Dld File Cnt=9] - [Dld Status=Complete]
- - [MD Source=FF.NET] - [MD Rating=M] - [MD Word Cnt=111073]
- - [MD Summary= The Freaks have come to Japan and a certain Vampire has come to fight them. In the dark alleys of Tokyo Japan's brightest light finally sees her shadow. And the past returns to make mischief for all.]
- - [Direct URL] https://www.fanfiction.net/s/1887661/1/
- - [Author1 URL] https://www.fanfiction.net/u/254088/
The following was one of the most fascinating Sailor Moon stories I ever read, and I only read it way back when *thinking* it was a Ranma crossover. What if a person learned of the senshis plans, and took it upon himself to stop the future ordained by them from coming to be. How far would he go, what steps would he take, knowing them, to stop them.
SM 'I'm Here to Help' by Mark Doherty - [Dld Date=01/18/2007] - [Dld Size=321kb] - [Dld File Cnt=8] - [Dld Status=Complete]
- - [MD Source=FF.NET] - [MD Rating=M] - [MD Word Cnt=61045]
- - [MD Summary= It has now come to this. I have lived too long failed too often and lost all that matters. Grant me this one last gamble. Grant me an end to our eternal conflict. Grant me the death of she who enslaved our world with its Purification. Grant me Serenity.]
- - [Direct URL] https://www.fanfiction.net/s/3337074/1/
- - [Author1 URL] https://www.fanfiction.net/u/1192193/
The below is one I personally did not overly care for, as I personally do not care for the most of it past about chapter 6 (I actually quite liked that part). A Ranma crossover where they are forced to reveal themselves to the government, and how the government decides to handle the politics of it. However, to my eyes, not only would the government not handle it that way, I view the strory as written that Ranma and Nabiki have suffered character deaths and have been subsumbed by their past lives.
RANMA-SM 'Progeny' by Jeffrey Vasquez - [Dld Date=03/24/2010] - [Dld Size=1135kb] - [Dld File Cnt=12] - [Dld Status=Inactive]
- - [MD Source=FF.NET] - [MD Rating=T] - [MD Word Cnt=209576]
- - [MD Summary= Memory lost. Memory Forgotten. Shadows dance under the light of the moon. Ranma Saotome thought that he was invincible. Nothing in the world could best him until someone close to his heart was taken from him.]
- - [Direct URL] https://www.fanfiction.net/s/293768/1/
- - [Author1 URL] https://www.fanfiction.net/u/72474/
The below is a far more unusual one than even any of the above, because it takes the *opposite* approach. What if the dark kingdom, decided to go public, and they release to that public *their* version of events, and do so in such a way that does not paint them as monsters. What are the senshi to do, especially when some of it actually makes some sense? Oh, and there is a nice rescue / kidnap Kasumi subplot where the Youma and Generals kidnap her because it is expected of them, then defend her from her own family.
RANMA-SM 'Lord Ranma' by Chibi-Reaper - [Dld Date=11/21/2009] - [Dld Size=204kb] - [Dld File Cnt=8] - [Dld Status=Inactive]
EDIT: There are other ones out there, these just come immediately to mind.