The aim of the paper is to diagnose the situation of the European Union after rejecting the Constitutional Treaty by France and Holland in 2005 and to show EU's future in the light of various theoretical concepts and visions both classical and new ones which are expressed by intellectuals, politicians and the Union's leaders. After making an extensive use of analysis, description and a comparative method and conducting an analysis of normative documents, the author has prepared an extensive analytical study which shows that both the EU and Europe have found themselves at a crossroads. The integration processes in Europe have significantly slowed down and the Union's further enlargement is seriously threatened today. He also indicates that Poland has not sufficiently used all the opportunities it gained when joining the European Union. The European Union, which has been drifting for the last few months, urgently needs new impulses in the form of theoretical solutions (model solutions) as well as brave steps on the side of politicians and its leaders which would enable them to continue the process of European integration and which would prevent the Union from breaking up. The integration process is presently in the unprecedented stage of crisis hiding itself behind a facade of triumph. It is connected with various political, economic, social, cultural and international factors. Poland and its politicians should take advantage of this difficult period and propose new constitutional solutions instead of grievances and requests. The image of the Union as 'a big sack of money' should be rejected. The vision of the future of European Union should be based on the spirit of community which on the one hand leads to reducing the so called democracy deficit and on the other hand enables the medium-sized and small countries to play a much bigger role than the one they would have to play if they stayed beyond this community.