I am thinking of UK Istanbul for next year but the Atlantic to the Black Sea sounds like a great trip and is firing my imagination, I have been taking the easy options (France/Spain) too often.
I also want to cross America, East to West and visit my elderly relatives in WA one more time before it's too late. I have criss crossed the USA on a motorbike and in rental cars, it's citizens (generally) are the most open and hospitable people I have met anywhere, I don't think they'll have changed recently............................if that trip was your ambition then I'd still go for it. I am 55 next and hope to do it next year, health permitting and relatives staying alive.