It becomes very obvious in the last 3 month, the central European members of the EU will have a much changed immigration and refugee approach in the very near future. Even A.Merkl is now trompeting tighter and much more controlled intakes of refugees. 
Considering these fast changing circumstances and Britain's cliff hanger decision - based on the free movement of EU citizens - to opt out of the EU, appears now as premature.  No wonder the EX Banker steps in trying to bolster the  Government decision, while the leading economic experts in the UK as well as Scotlands Government and large parts of the English population are against the BREXIT. 

Over 150.000 English citizens living and working in Germany have applied for German passports to stay in the EU and to maintain their employment and life style.