Oh, hadn't considered that...

"Should the UK leave the EU with no deal on 1st November 2019, EURid will enforce the following measures as far as .eu domain names that have GB/GI as the registrant’s residence country code are concerned..."

Is the nation state itself not a political entity?

Yes, that's what I was suggesting

Sorry, I thought you were just referring to the .eu tld.

Definitely a danger. The worst is that ppl can't even redirect their old traffic if they have to switch domains.

If someone really wants uk in their TLD they can always go with .uk.com - totally unrestricted.