The current upheavals suggest that nation-state has lost its functional tenability; that is because the supposed basic functions of such systems that were maintenance of ideology, economics, culture, and so on at the national level are facing crises. Nation-state can no longer fully implement their political ideals at national areas. In the functionalist approach, the existence of institutions depends on their functions, so with no place for their functions, the survival of nation-state will be unintelligible .The principle objective of this paper is to study a possible future of nation-states and their successors. The method of the study is reasoning. The results of this paper include two important points: the development of statehood and the formation of global political order based on democracy.