> If this does happen it will open the floodgates as regions in Italy / Asutria / Germnay want independance as well.
That's about as doubtful as your spelling (sorry, couldn't resist). The social, political, economic and historical realities are quite different. I doubt even the Basque Country would follow suit.
Of course, over the long term in Europe we are more likely to see a proliferation of small states organised around a sense of shared identity (as in Catalonia, those needn't be ethnic identities, just a shared sense of nationhood), but that's not something that would happen immediately.