Russia knows the Western countries (Baltics, Finland, Poland, Slovakia, Hungary, Czech Republic) are gone from its sphere of influence forever. Expect Russia to exert pressure on Orthodox countries in NATO with Romania being the first. Russia still considers the Orthodox civilization to be in its sphere of influence. Along with the large Russian ethnic concentration in Donbas/Crimea, that's why Russia took direct action in Ukraine.
Greece also has longstanding ties to Russia, so they’d have another option in trading partners if the EU continues to harass them. That’s assuming the EU doesn’t break up under the weight of its arrogance.