Verizon Lumia Icon phones users may get Windows 10 Mobile upgrade soon. Verizon could release the Windows 10 upgrade for the Lumia icon starting from June 23, 2016.
Initially, Lumia Icon was not in the Windows 10 Mobile upgrade list. But last month former Insider chief Gabe Aul indicated that Window 10 is indeed coming to Icon. Install and run the Upgrade Advisor app to see if and when your Lumia Icon is ready for the upgrade.