AMD has confirmed that AM4 will be supported at least through next year. https://hothardware.com/news/amd-confirms-am4-socket-support-future-ryzen-processors-20

AMD has confirmed that AM4 will be supported at least through next year. https://hothardware.com/news/amd-confirms-am4-socket-support-future-ryzen-processors-2020 https://hothardware.com/news/amd-confirms-am4-socket-support... They didn't make any such promises about TR sockets.