After reading the link provided I found this to be interesting
The European Union’s aviation safety legislation applies in 32 European countries – the current 28 EU Member States and the following four associated countries: Iceland, Liechtenstein, Norway, and Switzerland. The countries to which this legislation applies will, for the purposes of simplification, hereafter be referred to as "EASA Member States".
Could the 4 associated countries become 5 in the next couple of years ?