They won't even return the occupied part of Cyprus. Honestly I'm surprised that Russia still didn't try to use that one for propaganda, since the Turkish claims are very similar to Russian ones and it's a wedge between two NATO members.
Turkey is considering joining BRICS. Putin has more to lose than he has to gain from provoking one of the more friendly NATO members.
Turkey drives wedges between itself and other NATO members on its own anyways. I don't think Russia pulling on that thread would do anything other than make Turkey less friendly to them.
It could even have the opposite effect and unify NATO a bit because who in the West gives Russia any credibility other than the far right?
I believe Erdogan (and Turkey in general) were big players in getting the wheat trade deal settled, as well as the prisoner exchange, though I could be misremembering. It's just a weird situation of Erdogan having a history of centralizing power, but also making moves to be more relevant on the global stage.
Was Trump's performance so bad that it accidently set Erdogan straight? What next, Putin straight up dies from a heart attack over shock? Kim Jung Un, so disgusted in his bff Trump ends up giving up the dictatorship and surrenders?
When you think about it, the primary reason for taking Crimea was because Russia needed a port to maintain its Black Sea Fleet. Now that the Moskva and most of that fleet have been upgraded to submarines in said Black Sea, do they still even need the port?