2022 Russian Invasion of Ukraine - Place your bets. What will be the outcome of the war?

100% completion secret ending: Russian government collapses and Russia is balkanized into bunch of nations that aren't so stupidly large and belligerent

Tbe Ukrainians taking back Crimea is about as realistic as the Russians taking Kiev and annexing the western half of Ukraine. Basically it's very, very, very unlikely that either of those will ever happen.
I don't know who made them, but in my opinion, these outcomes are the most optimistic and pessimistic for both sides.