I don’t see that happening for a while, and tbh it still blows my mind that Nintendo prioritized OLED over any sort of performance upgrade. OLED is undeniably better looking, but it’s not worth it imo when some first party games can’t even hit 30 fps.
I prefer the hundreds of games I already own on steam and the ability to own my system and customize it as I see fit, but to each their own. Ifixit sells screens, they might release an OLED one at some point for people who want it, but I wouldn't hold my breath for it.
Burn-in is overhyped with the newer prevention tools. I’ve used my Switch for over 2000 hours, and I’ve yet to see any burn-in. I also have an OLED widescreen monitor that I’ve used for work and gaming 12 hours a day for the last two years, and it looks fantastic. Hard to go back when the colors are so much more accurate and vibrant.