For Google voice, they redid the UI for mobile and web back in January 2017 (completely new look). So I wouldn't say voice is dying. As for hangouts, they alre

For Google voice, they redid the UI for mobile and web back in January 2017 (completely new look). So I wouldn't say voice is dying. As for hangouts, they already announced the replacement for this. Hangouts Chat and Hangouts Meet. Meet is already out there and Chat is in closed beta.