What will happen if at the end Russia succeed in her conquest against Ukraine and take over the economy of Ukraine. That will extend the economic power of Russia no doubt and that will make Russia more powerful.
How will EU and NATO countries relate with Russia if that happens ?
I think this will not give Russia anything, only new problems. Why take a country with a post-war crisis of even greater proportions. I think Russia will strengthen its economy with the recent news that its natural resources are being sold exclusively for rubles. This will really benefit Russia, and import substitution will also help due to the departure of many companies from Russia.