I wonder whether Russia will be as isolated as North Korea.
It can be as isolated as Iran however, which is pretty remarkable considering how close the now prosperous St Petersburg is to Helsinki and Tallinn. The contrast from today to a year from now will be extreme.
Europe is still heavily reliant on Russian oil and gas, but this is clearly untenable. If and when that business dries up, they will be truly isolated from the west.
Or they will simply use China as a middleman for whatever products they want from the West (that China doesn't already make).
It's extremely difficult to actually harm Russia in the long term thanks to China.
Of course not, NK is an open air prison for its nationals.