Hi. They picked the design of the French consortium.
This is the runner-up, by Chicago-based Studio Gang Architects.
There were many more proposed designs, some apparently a little fanciful for a €300-million refurbishment that's probably intended to be mainly functional.
It is necessary since the tower was designed when oil and power were still cheap, prior the 1973 oil crash ; it no longer fits environmental standards at all.
Here's another example, Dominique Perrault seemed to suggest to turn it into a supertall.
Not a chance for now.
As long as the tower is alone, awkwardly out-of-place in the skyline, most won't like it anyway. It seems lone towers like this feel a bit dystopian like objects of domination of some sort or whatever negative. A real change would be to add more towers to the 14th-arrondissement side of the neighborhood. I think there is room for more tall things when they agree to demolish some deprecated stuff that's in the close 14th-arrondissement surroundings of the tower. Like those gross bars behind it.
This bit of the district is not particularly pleasant.