Sony IMX 663 is rumoured in news and What better the 12.2 MP does is what we see them in Flagships like iPhone , Samsung S20 FE and Huwaei Phones all using 12MP giving better shots than 108MP and 64MP.
With New IMX name, something's are improved with old sensors.
For Example-
64MP Sony IMX 682 vs Sony IMX 686 There are some adavntages to IMX 686.
OnePlus 9 Pro uses Sony IMX 789 sensor which is 48MP which is better version of Sony IMX 689 48MP. Can You Imagine how much improvements 48MP Sony IMX 482 has gone to become 48MP Sony IMX 789.
In the end, what matters is natural photos and clarity in shots. No sharpness, no blurriness, Clear Zoomed Photos, Good Dynamic Range and All Details are made visible in a photo are most important whether it is 12MP or 10MP or 50MP or 108MP or 151MP or 200MP.