I'll be astonished if these sanctions aren't in place for the best part of a decade. There is no way Putin is backing down and Usmanov and Co have shown no indication of putting any distance between themselves and Putin.
Equally, having had the Oligarchs and their assets used against him in this way, there seems little prospect that the russian state will allow the old status quo to re-establish any time soon.
Whatever the language being used, this is a decision with long term implications.
The Russian economy cannot sustain the current level of isolation.
We, in the west, will find that it is no picnic either. The price of food, fuel and goodness knows what else will rocket.
The effect in Russia is only beginning to bite now, it will take longer in Western Europe but it will happen. There will be an enormous shortage of wheat because there probably won't be any coming from Russia or the Ukraine this year.
This is turning into an economic war as much as an invasion and it is the economic that will bring it to a quick conclusion.
I can envisage a military takeover in Russia.