Just to give you a flavour of the expat concerns here in Euroland.
There seems to be concensus that reciprocal healthcare cover will continue. e.g. you are in the Spanish nhs having left the Uk nhs. (in this instance the Uk pays Spain £4000 a year ) However no certainty and for a lot of expats it will mean packing bags and going back to Uk if it isn't there. Bit awkward if your only house is here.
Voting rights in elections are currently a right mess. having lived here for 14 years , as of today I do not know if I can vote in next Mays elections here or the Uk for that matter. I might be voteless……………….
saw a great question from an expat today. After Brexit can I up sticks from Spain and go and live in France? I suspect the answer will be no unless you can fund your own French health care.
Not a small problem as there are maybe a million of us in EU land. No one knows the real number of course.