I've lived in a dead zone since 2006. I do not see much likelihood my area will get prioritized over the next ten years (for proper cell coverage, and even wireless quality; regular internet is OK here but a generation or two behind).
Money rules. When you're in an area that is adjacent an uninhabited region, it isn't economical to place cell towers to improve that coverage, so we get bypassed. Perhaps different technologies will take over, but attacks on the internet are also likely to rise, and much faster than responses to such attacks.
I had worked in the industry for only six months when I made an observation that still holds true today just as it did in 1981: there is roughly a five year cycle of distributed vs. consolidated as the main paradigm. This is how technological innovation works; the bottleneck is addressed because it defines the overall performance of the greater system. Then the infrastructure reacts accordingly, until the bottleneck moves.
I suspect this situation is different outside the USA, but here, we are already reaching the peak performance of internet, especially with the burden that ever-large-and-more-complex layers of security continue to add to the equation. I am already seeing a trend again away from distributed (which is now unfortunately called "cloud", which I refuse to use as a term because it evokes instability and lack of integrity of data). The five year cycle continues unabated. Rinse and repeat.