One think I really, really hope will come out of this, regardless of the outcome - to cut back dependence on any Russian import including gas and oil to ideally 0 across whole Europe. It doesn't make sense to cut one's branch off by paying him to build & maintain his army.
If it costs more, well damn that's the price for freedom I guess right now, still acceptable given circumstances.
I've been saying it for years, also here repeatedly - Russia and its current 'leader' is by far the biggest threat to European free western society we value so much here. Even the most stubborn and russia-invested ones are getting the memo now.