NATO/EU are going to collapse. Not sure when though.
Russia is going to march "not one inch westward" more, than it has to, to secure its interests.
Discussion
I don't think Russia has any interest in expanding its own borders, of course. They have enough land.
No human has ever had enough of anything especially the psychopaths who tend to rise to the top of political structures.
It is always cost benefit analysis.
Luckily they probably don't have demographics to pull that off.
I can bet you live more than 1000 miles from Russian border.
That's about the distance. And your answer says absolutely nothing.
I hope NATO does not collapse because I live much closer and even though I don't think Russia is marching towards Paris any time soon I still like my nuclear shield.