From CNN.com

Those looking for hope amid the devastation of Notre Dame will be heartened by French President Emmanuel Macron's assurance that the French will "rebuild together," and immediate fundraising efforts leading to pledges of 50 million euros ($56 million) and 200 million euros ($226 million) from Paris' City Hall and the luxury goods and fashion house LVMH, respectively.
Assuming the requisite funding is found, how will the process be carried out?
Before distinguishing between the salvageable and the unrecoverable, immediate steps will need to be taken to prevent further damage, architectural historian and broadcaster Jonathan Foyle explains.
"It's already a wet building because of the water that's been pumped on it, so they're going to need to provide some kind of cover from the elements," he told CNN.
"The roof's job was to discharge thousands of tons of water, so where's that going to go? Every time it rains it's going to cause damage at this point, so it's a war of attrition now."
French authorities will ultimately need to take a series of design decisions over how best to rebuild. To do so, they will need to better understand how the medieval cathedral was constructed in the first place.
But the goal of restoration is not always to replicate the past, and modern tastes and technologies may influence how damaged structures are reimagined.

Yeah, they might throw in a minaret or two, to please the Muslims and acknowledge the 50% Muslim reality of modern-day Paris.

Please correct me if I'm mistaken, but I recall Bp. Williamson saying in his lectures that the Freemasons managed the Catholic Church's properties in Europe, especially France.   If this is true, it means they would have easy access to destroy Notre Dame Cathedral.

You might be thinking of something related to this: "In 1905 the French government passed a law stipulating “the separation of churches and the state, and unilaterally abrogating the terms of the 1801 Concordat. According to Sheridan Gilley while claiming to guarantee freedom of worship, the law kept religion under state regulation.^[4] The act stipulated that all Church property be turned over to "associations" of lay people."

p.s.:

 Lastly, in 1905, Church and State were radically and brutally separated by a former seminarian who had become a Freemason, Emile Combes.  All the churches, parsonages, bishops’ residences, seminaries were confiscated, and the State suppressed any financial support to the Church.  Thanks to the vigilance and the energy of St. Pius X, the reaction of French Catholics was unanimous, and they mobilized to defend their Church, thus learning how to live on their own resources and support their priests and churches out of their own pockets.