I see it as a certainty that Russia will prevail, "Ukraine Fatigue" is already setting in in the West and once the European populations realise just how dependent on Russia they are and start to be seriously inconvenienced their allegiance will crumble. Like the US in Vietnam, their resolve will falter due to voters shying away from getting even more involved, especially if there's talk of conscription and EU and US boots on the ground.
NATO will be their usual fence sitting self, and unless the US sees a pressing demand to get properly involved herself, which with a senile President dithering about, and a soft bellied populace, is unlikely to happen, it will all be meetings and bluster. Ridicule Russia and her military's resolve at your peril. The Bear isn't backing down any time soon, and will probably unsheath her claws soon.
Russia is a totally none PC, ruthless and determined old school country, used to general hardship and her population will easily turn more and more against the supporters of Ukraine.
What started as an amusing potential rout of The Bear to many here is now being shown as the youthful, wargame playing, wishful thinking it is. Russia ain't gonna back down, she'll dig in deeper and use slow attrition to weaken the West's resolve and haemorrhage our military resources and money.
And if you think Ukraine will prostrate themselves in gratitude to the West for what they've already done, once their true long term situation becomes apparent, you are naively wrong. They'll blame us for not doing enough and join the Russians in decrying us. We are walking into a bad situation and weakening our military resources for our own use daily.
All in my humble opinion...