I though this was supposed to happen after the GDPR was made law... still waiting.
I was right.
Although I remember plenty of comments on HN about how Facebook et al. would be blocking EU users because it would be too expensive for them to comply with GDPR.
One or two US based newspaper websites were all I noticed blocking access because of compliance reasons. I expect a similar impact due to Article 13.
Still others present a "subscription required" page if you connect from Europe, but display the content if you access them from the US (or through archive.is).