I mean Ukraine isn't in a good position in total victory, they still border Russia, nothing is going to change that geography. Russia made their intentions abundantly clear, they're well known now. There's no going back to pre-war relations this lifetime.
I think you're drastically overestimating the strength of Russia's alliances, if you even want to call it that. I think that's even too strong of a word. Frenemies is probably closer especially when you're talking about China. Whether or not Putin cares about his war dead is irrelevant, their population is already in a demographic death spiral, hundreds of thousands dead even more fleeing the country isn't something that can be undone anytime soon.
China still thinks Russia owes them a lot of Siberia.