Probably not because there's no reason to think Russia is being serious. Russia's non-negotiable tiny footnote in all of their peace proposals so far has been

Probably not because there's no reason to think Russia is being serious. Russia's non-negotiable tiny footnote in all of their peace proposals so far has been to take control of the security policy of every surrounding country. Giving them parts of Ukraine and then letting them re-establish the USSR seems like something that will never happen.