Tentatively, the Nazanin news is a good sign in all this. Putin was counting on the relationship between Iran and the West irretrievably collapsing but it may have just given Iran a bit of leverage to force us into a bit of distasteful realpolitik.
With all the talk about Sweden and Finland, isn't it more likely that Putin will foment violence or perhaps even invade the Baltic states? Serbia is very pro-Russian and there have been pro-Russian demos (replete with Z regalia) in the last few days. I thought it was telling that the PMs who visited Kyiv (Polish, Czech, Slovenian) were all from countries that were most recently within the Russian sphere of influence. (I mean, there's also Hungary but, you know, Orban.)