im not sure it will ever happen, from what ive heard the vast majority of people still used the switch as a handheld so would you see the difference? (honestly dont know) there is the OLED version which i didn't get at first but after playing a couple of visually dark games i can now see the difference, they were almost unplayable in handheld so had to play on my TV
the graphics do look dated, thats why i thought they may have released the wii version instead as slightly better. in saying all this, i played KotOR I and II last year and the story made them playable, quickly got past the graphics