I mentioned this elsewhere, but I wonder if this will drive Europe towards aligning with China.

With the Russian economy struggling, many of its oligarchs can either share their insane wealth to prop up the war effort, or they can ask China for help. If Europe were to broker closer ties with China over the US, would they favour growth with Europe over propping up a failed war? Losing its biggest ally might be enough to make Putin decide that it's simply not worth it, to declare victory, and retreat back.

Those looking to succeed Putin are also likely looking at how easy it might be to oust an ageing leader, and to do basic shit like revoking a war to rebuild a global economy. I'm not saying that the Kremlin are likely going to rejoin the fold any time soon, but unfucking everything couldn't be easier.