While not everybody in EUrope is in the mood to party these days, it is interesting to see that there are initiatives of citizens who do not want the European idea to be trashed by nationalist anti-EU movements and parties. In many German and a few other European cities, people get together every Sunday to show their support and also concern. This Pulse of Europe started as a grassroots initiative in Frankfurt, and these days thousands of people demonstrate in a peaceful and fun atmosphere. Even if your voice is not great, you are invited to sing the Song of Joy to the music of the European Anthem ...
There are other groups around here, such as We are Europe or the Loud Europeans (German) - and I am sure that, if you asked each supporter of such an initiative about concepts of how the EU should be in the future, you would get many different answers. The common denominator, however, is that letting the Union fall apart is not the answer to European issues.
Also, on the day of the Treaty of Rome anniversary there will be a "March for Europe" gathering in Rome. See the program here. Yes, all roads lead to Rome

Christian