Not an economist , but i don't think if Europe goes tomorrow and lift all the sanctions onRussia ,tha Russia will be able to "pass the page" and start buying European products again..Russia was forced to invest heavily on its agriculture and forced into an import substitution program from western technology ,not only creating local technology but using alternative onefrom EuroAsia.  This means that it will take at least years before sanctions are lifted for Europe to regain the Russian market they had.. Because Russia is not going to throw away all the $billions invested on its agriculture and import technology substitution ,creating new companies ,for latergo and sabotage their own local Industry ,by allowing Euopeans to continue business as usual.  So the way it looks.. unless something historical happens.. like Europe officially split from America, in the way of retaking its Sovereignty and power back ,and refusing to follow blindlyany of their policies and something with bullet proof legal guarantees created ,like a free trade zone between Russia and Europe ,from Lisboa Portugal to Vladivostok.. With big economic penalties for violating the free trade pact..Then the chance of Europeans regaining the Russianmarket will be very small.  Russia is paying the price of the very short sight vision of Putin , allowing its economic minister KUDRIN to first Westernisize the Russian market thinking AMericans were going to allow their Europeans economies to fully integrate with Russia ,something that could threaten the very existence of NATO without turning the world in wars first.. and creating revolutions at their borders. It was not like there was no signs already? Did anyone forget It was a US coup whatremoved Georgia Pro Russian president ,replacing him for a PRO US one? Or how in Ukraine was as early as the 0,000s under a major NGO attack by US proxies ,creating a CIA-ultra nationalism anti RUssia movement? Yakunovych many forget was overthrow not one but TWO TIMES!!! already.