I think they will transit more to socialism in one warsava pact,i some how imagine they will try to go toward more technocratic approach where every small detail will be followed by computer(imagine Chinese social credit system taken to its extreme)Even is the USSR had a market transition, they would never have massive trade with the rest of their world, their geography makes fortnight trade very hard. You see that with OTL Russia and through the history of the Russian Empire. Geography closes Russia off from the world. It is more expensive to transport goods between Russia and Europe then between China and America. The USSR copy and pasting what Deng did is impossible. Their best bet would be to continue the autarky and use the KGB to steal western technology. What the USSR needed to do was have a negoteated end to the cold war and return to a "socialism in one country" approach and focus on internal development.