[R@ptor]

I really don't know if that's a particularly good idea and if the majority of the people living in central Paris would like to see this.
I just returned from 5 days in Paris 2 days ago and the differences between central Paris and some of the suburbs, especially those in the northern parts couldn't possibly be any larger. The Paris inside the ring highway is a piece of urban art, while some parts of the Paris outside the ring highway are as close to slums as you can get in western Europe with lots of crime and poverty. If both parts would be unified that would mean that a lot of the money of central Paris would flow into the parts outside of downtown and I'm not so sure if the Parisians would welcome that.