More precisely, members of the EU will continue to have their own law about Freedom of Panorama. For instance, there is not freedom of panorama in France, while it is absolute in the UK, and there are some restrictions in Germany.
Here's a funny one: in France, the Eiffel Tower copyright has expired; however, courts have deemed that the lighting display on the tower is a protected work, still copyrighted. Meaning you are allowed to publish pictures of the Eiffel Tower taken at day, but not at night -- unless you have permission. [1]
[0] https://en.wikipedia.org/wiki/Freedom_of_panorama#European_U...
[1] https://en.wikipedia.org/wiki/Eiffel_Tower#Image_copyright_c...
Thinking in US terms, it sounds like the argument that if you take a picture of your kids with a building in the background, the picture is a derivative work of the building's architect. Madness.