There seems to be quite a battle as to whether Notre Dame should be restored to as close as possible to what it was or is it better to do something more creative. I love Notre Dame and I love Paris and I think going for something more creative is the way to do. This is the city that gave the world the very controversial (at the time) Eiffel Tower, the glass pyramid before The Louvre, and Le Centre Pompidou.
President Macron is for something more creative and it seems it will pprobably come down to his decision. I say go for it!
Interesting article in The Washington Post:
https://www.washingtonpost.com/graphics/2020/entertainment/notre-dame-history/
