For Sony I think Ratchet and Clank, Horizon and Uncharted will remain looking amazing for quite some time. Games like Infamous, Killzone Shadowfall and Driveclub will look a bit outdated by next gen. But I doubt they will ever become ugly. I don't think PS3 exclusives like GOW 3 are ugly where I did think that of GOW 1 after playing three.
Also games that don't have HDR won't age very well if you put up R&C against a PS3 R&C or any cartoonish game it looks dull. Fuck it even Zelda looks dull against a HDR supporting game R&C especially BOTW, which colour palette isn't my cup of tea. The lack of HDR for Switch is going to be problematic in 3 years. Just looking at Horizon vs Witcher III which boven have a beatiful open world the lightning in HZD just tops every other open world on PS4.
You should look at the difference between fast rmx and Wipeout Omega. Where one does support HDR and the other one doesn't it looks so much duller in my opinion.
Please excuse my (probally) poor grammar
