The first concrete indications of an chip overhaul after four Google Tensor generations have been discovered in an import/export database, but this will only come with the successor to the Pixel 9 in 2025. It is said to have nothing in common with Samsung's Exynos chipsets and will no longer be produced by Samsung, which has now been proven.
Honestly the main thing keeping me from going back to Pixel was the chip but by 2025 I'm sure I'll have other issues with the landscape of mobiles.
For me it wasn't even the performance angle. The modem is a real under-performer.