FAA Licence Holders
Ok I read the initial post and thought maybe its not specific enough.
I think its relating to FAA licence holders that are domiciled within the EU.
Now if this is the case, then im pretty sure that after 2014, legistlation will prevent them from exercising their priviliges unless they have an EASA. Equivalent licence/rating etc.
A good example would be for instance flying airways using the priviliges of an FAA IR without having the EASA equivalent.
This is the area that I think will be policed by some countries more than others but only time will tell.
There are a number of interesting conundrums im sure.