1. Agree.1. Putin's ambitions can't be "proven". I think his ambitions took a kick in the ass after seeing how poorly his army and air force performed in Ukraine. But it is "well known" that he wants to restore as much of the old USSR that he can. Not my speculation, but the various talking heads' in the NSA and CIA.
2. After 30-years of independence is not time to re-define Russia's "sphere of influence". Russia is seeing how feeble they are on the world stage, their economy is a joke as well as their military. If China sides with Putin they will see just how much influence they have as well.
3. NATO will keep feeding the Ukrainians weapons until Putin's army evaporates. Russia was supposed to capture Ukraine in 3-days. They won't capture it ever. The Ruble is worthless, Putin is helpless, his best bet is to abscond with a few riches to China? Hong Kong?
2. China used have better relationship with US than they had with Russia up till a few years ago... China generally likes making money and is interested in resources... They see Russia as a Kleptocracy full of thugs and gangsters. They like there Oil and Gas but at what price and do you trust the Russians...
China I think will stay out of this... They will not hinder or help Russia... It is the big question...
3. Agreed... Don't think Putin would be accepted in China... I say most likely is him being arrested or suddenly dying of natural causes..