No, please refer to Jetson Software Roadmap for 2H-2021 and 2022 - Jetson & Embedded Systems / Jetson Nano - NVIDIA Developer Forums
Please see the Lifecycle page on the Jetson Developer Zone for module lifecycle.
For devkit EOL, we will have the EOL notice before 6 months ago, such as
EOL Notice for NVIDIA Jetson TX1 Developer Kit - Jetson & Embedded Systems / Jetson TX1 - NVIDIA Developer Forums