CEO McAdam in 2016 carefully said the decision hadn't been made. In fall 2017, he told Wall Street Verizon hasn't budgeted any increased spending for 5G even in 2019. He has good reason to be coy. Verizon and the Euro CEOs constantly use the (often claimed) high spending needed for 5G as a reason for regulators to be weak and governments provide subsidies. NTT DOCOMO CTO Seizo Inoe and many others planning the networks see little if any capex increase.
So I was surprised when I discovered Verizon VP Charla Rath in spring 2016 wrote, "Just as Verizon invested billions to be the first mobile carrier to deploy our world leading 4G LTE network, we plan to do the same for 5G. Sanyogita Shamsunder, Verizon’s Director of Wireless and Technology Strategy, outlined this commitment during the opening panel."