Nintendo looks to be giving the original Switch a mid-cycle revamp to match the internal specifications of the new Switch Lite. The company has made a filing seeking FCC approval for a variation in design to its flagship hybrid console noting changes to the SoC, NAND storage and CPU board.
https://www.notebookcheck.net/OG-Switch-to-get-upgraded-Nvidia-Tegra-X1-chip-in-mid-cycle-revamp.427262.0.html