Azazyel
This is both good and bad. Good; because you've taken away her unwanted mortality, even making her sane again. Bad; because she now doesn't control the Grimm, meaning you need to apply your control quickly, or else they're going to overrun the entirety of the population (both humans and faunus) with numbers alone. So yeah, get to one of the Grimm spawning pools; and either take control of the Grimm, or have your Guardian absorb enough of it so that you can move everyone you can to the moon base. If not? Then to another world.