Planning ahead is always with a pinch of uncertainty. I don't know where I will be in a year's time nor what sort of countries are available for travel. As I am doing all of this on a bicycle, I don't zigzag the world jumping from one highlight to another. My travels are as much as possible liniear and done over land. I am headed east and here is my country wishlist. You can follow my travelled route on Google MyMaps.
Denmark, Germany, Czechia, Austria, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Albania, Greece, North Macedonia, Bulgaria
Turkey, Georgia, Armenia
Iran, UAE, Oman, Saudi Arabia
Egypt, Sudan
Azerbaijan, Kazakhstan, Uzbekistan, Kyrgyzstan
China, Mongolia, South Korea, Japan