That ship has sailed long ago.
At this point the happiest ending would be Usagi joining the Geishu clan, then bringing Jotaro in, then bringing Gen in, then helping Chizu to regain her clan and convincing Noriyuki to use whatever remains of Nekos as secret spies. During all that Usagi saves Tomoe from an unwanted political marriage and the story ends with the bunny fucking two lusty cat girls at once. At the same time Gen fucks Kitsune so hard that she forever stops being shit and Kiyoko holds hands
Not gonna happen, though. At this point, Usagi has higher chances of taking Sasuke's job once the wizard finally bites the dust. I mean, do you know anyone else who has slayed so many demons and did it WITHOUT using magic? Long ears is qualified.