Not really. At the moment the whole thing in Ukraine seems like a show of force for Russia. They can only lose by going to war. Of course the situation is flammable and a miscalculation could spark a conflict, but even that would be limited to Ukraine most likely. It would cost enormously to Russia, as Western powers would supply Ukraine until Putin would have to retreat and suffer a humiliating defeat. It's just very hard for me to see any other way this would play out.