I think it might get partitioned like Germany did. It would help the Western narrative engine to draw those parallels and it would allow the West to continue operating and building power while requiring Russia’s constant attention.
Russia cannot occupy Ukraine and is unlikely to physically invade and occupy Kyiv directly. It is also unlikely that Russia will spend the resources to do to Ukraine what the US did to Korea.
I think that’s actually going to be pretty difficult. It would be a true triumph of counterintelligence to pull that off.