One thing is certain here, you can't let the French have anything to do with this - they've already made too many bad decisions, like letting the cathylicks run the place.
If the French had their way you're going to get some kind of postmodernist deconstructivism crap like the Sainte Bernadette du Banlay in Nevers, France. As the following picture depicts, you have a combination Maginot Line bunker, nuclear war fallout shelter, and church.
Notre Dame needs the roof replaced and a new spire, both things that Donald Trump has experience with - and the new spire could also be used to improve WiFi coverage in the area. Trump's workers also would get the job done in record time instead of the French sitting on their posteriors sipping wine and eating baguettes all day.