it would be really nice if it involved some kind of exchange... italian ATCOs come to Spain and we are allowed to go and replace them in Italy
It would be really great! I mean... short period of exchange (2 to 3 years) would be really formative for everybody: for you and for the hosting unit/controllers.
And initially... to be employed in the Upper Airspace's sectors won't be a problem as the national language can be easily avoided, there. (At the moment not in the terminal due to the VFR traffic).