I think the only way to give the European project a new start is to create political movements/structures at European level. These movements/structures must be able to propose a common project for Europe. These movements/structures cannot be built on the model of national parties: so far, the attempts to do so (like the European Socialist Party or as far as I know, the Greens) have failed. On the other hand, they cannot be just loose networks (there are already numbers of them) because they should be able to promote a European political framework.  

It is an important issue to be discussed on European Tribune, as well as Whataboutbob's
Creating A New Left Economic Manifesto.

We should make these issues (and some others) permanent threads. Is it possible to create permanent threads?  

"Dieu se rit des hommes qui se plaignent des conséquences alors qu'ils en chérissent les causes" Jacques-Bénigne Bossuet