for me a clear path opening up the solution of this war and the future is the sentiment within Russia. I dont know what the overall Russian populace think of it, we've seen some protests which are indicative of very strong feelings given the policing situation, but it doesn't tell us the whole story.
Furthermore, drawing a crude parallel with the post-WW1 punishment of Germany to economic debridement, the last thing you want is a generation of festering idiots who grow up to be Russia's ruling class in the future. It feels to me like we're heading towards a situation where a Russian internal power grab may ensue, or at least political tensions rise to the point of being debilitating for Putin, especially if things get economically tighter at home in Moscow.