I'm afraid we'll never be able to go back to visit Ukraine again. I mean, even if this war were to suddenly, miraculously, stop, it would / will take _years_ to rebuild the country, remove the unexploded shells, etc. And we ain't seen nothing yet.
As to Russia, visiting again, I've given up on that country (been a few times, and way out of cities and town), but I'm resigned, I don't think they will _ever_ change. Again and again, they do the same, stupid, senseless, cruel things, and yes, between them, they do stuff that makes you have a glimpse of home: hey', perhaps they've changed?! And then, BANG! - back to the old ways, and this cycle just goes on and on :(