First, we use the words country, nation, and state very loosely. You’re asking if you think Europe will ever become a single state. I don’t think so - there’s no reason for it. The concepts of states as we know them needs to ultimately be tossed into the dustbin of history. Europe is a territory, a land, or some might say a country with many nations living on it. Most of these nations have states. These nations have much to lose by giving up their states to a state that is plurinational.