Yes, more granularity of freedom for every man and country, to each his own, is essential for humanity. The opposite of the stifling collusion the EuroZone aims to pursue. Yet, freedom can be messy, so expect a little recalibration. A little because the matrimony with the Eurozone was so short.
The Eurozone is simply on the wrong side of evolution, and leaving the Eurozone in line with what the French, Dutch, and Irish people already voted against facing the impending Eurozone constitution (in 2005 and 2008) is the proper thing to do if politicians actually represented its bright-eyed people.