I'd be surprised if it was in the next switch. Presumably they'd want to retain backward compatibility with the older switch games on ARM?
Unless the games' developers can just hit recompile somewhere and get an x86 ver, but how realistic is that really?
Also, on these low-power machines I expect the recent upscalers like FSR and DLSS, especially since it'd be easy for nintendo to encourage all developers to integrate them, to be very relevant when outputting to a TV, and at least as of right now nVidia's dlss sadly still seems to result in a noticable quality uplift over FSR.