to my mind, yes, but it is hardly possible. Some of its former parts switched the religion to islam or catholic.That is main reason of cultural difference.
Talking about putting countries back on the map with cultural changes, I wonder what Russians would think about putting Austria-Hungary back on the map. After all, Russia and Austria-Hungary were allies before world war 1 made them enemies. I speculate that a restored Austria-Hungary would be a useful Russian ally today, against the newly constructed Franco-German expansion to the east. What would Russians think about replacing the Central European countries with Austria-Hungary, as a restoration?