I think we're in the realm of wild fiction. I have the feeling you're going to keep your job and roam around this forum for many years to come, like it or not

If not... it won't change anything. You can ready a backpack with 2 weeks of supplies and iodine tabs, if it helps you to sleep better.
I also have the strong feeling it won't end well for Ukraine. Bad place to be those days, sad to say. Russia can't hand it over to NATO, that's too "next door". I also don't think it is very smart to be willing to expand NATO to ex-SSSR countries, which is France and Germany official diplomatic stance. From Russia's perspective it is a very aggressive move, an insult and a threat, and that's something everyone should understand.
My way would be to have some kind of "neutral commonwealth" from Finland to the Balkans, nations that accept its not their interest or own good to take any side from a military standpoint (given that they
actually are between a hammer and an anvil), which doesn't prevent any kind of trade agreements or some discount on natural gas flowing through.