Amazing article Susan.

Eventually, «cellular networks» are coming to a cell density and Fiber-driven core Network that is, well, Wi-Fi.

As FON tried years ago, I would bet that the future is more about seamless mobile IPv6 Wi-Fi ac+ Routers connected through dumb Ethernet over Fiber Switches than updates to the Old School Cell Networks of carriers that never accepted the logical consequence of IP Networks explained by David Isenberg 22 years ago : the best IP Network is the dumbest one.