What exactly "needs to change"?
When I see people complain about the EU it's usually about "the EU taking their sovereignty and imposing stuff on them".
So if "things are going to change" that means the EU would have to become less like the U.S. (a federal entity), and more like an aggregate of wildly different cultures and regulations (so more like the pre-EU Europe).
Is that really a good thing? And do things "need to change" that way? Or is more education necessary about why the EU needs to become more homogeneous and less heterogeneous?
I can say one thing - if EU states remain wildly different from each other in culture, language, and regulations, the EU will continue to remain a much less appealing market than the US. And it's not so much that the laws are "stricter" (like say the privacy ones), as it is about the laws being different in each country, and making it hard for a company to be compliant with all of them. And I think that means fewer options and fewer quality products for Europeans in the end (you'll be stuck with your locally-made products).