In 2020 and 2021, U.S. telecom will be driven by how fast T-Mobile builds and markets its "best in the Western World" 5G network. It now has a better network than Verizon in much of the U.S. It will offer 5G at over 100 Mbps to 80-85% of the U.S. in about three years. I believe much of that will be in the next 12 months. There's little practical advantage, of courage, of speeds over ~25 Mbps, but customers still want to buy.
That drives a stake into Verizon's business model, which was built a decade ago on premium prices justified by the better network. All the U.S. carriers have been hemorrhaging subs to T-Mobile because of lower prices. T-Mobile and AT&T came close to network parity with Verizon about three years ago and consumers are catching on. The $billion restoration in Verizon capex will not be enough to pull them ahead,
T-Mobile is committed to spending ~$10 billion a year in capex for three years. That's easily enough to reach 35-45,000 towers, over 80% of the population. Sprint's golden 5G 2.5 GHz spectrum is remarkably cheap to upgrade to 5G and over 100 Mbps.