European labor exchange

As the European Union has stabilized what does this mean to the economy the economy of the countries involved to have free movement to member citizens to other countries with more economic opportunities. With the recent addition of some Eastern European countries, we begin to see a movement of Eastern Europeans from lesser developed nations like Bulgaria and Romania, to western more prosperous western countries. With this interchanging of people and open migration of European citizens will we see the rise of a more of a linguistic and culturally unified Europe?