I don't think so. Not without a lot more effort on the part of the individual countries, anyway. The trend right now is that the EU is continuing to get more powerful within its domestic sphere, and that trend can simply continue without a formal constitution.
Time will tell.
It is an open question now. But a free trade zone in Europe is a good thing. Perhaps now they can get it right.
You heard it here first...
All this wonderful EU integration will end in WWIII.
The three dozen tribes of Europe have always hated each other for oh, now, about 4,000 years???
Throw in a Muslim fundamentalist majority in Nuclear, U.N. Security Council, France by 2050 (with or without a "EU Constitution")...
Earth-shattering Ka-Boom, anyone???
Reagan80