Specifically, Apple is reportedly developing the A19 Bionic chip as well as the Silicon M3 for future iPhone and Mac models.

It is known that Apple's product development roadmap extends far beyond the next release. It spans years into the future, ensuring the company remains at the forefront. Currently, the company has begun development of its A19 Bionic and M5 chips even though the A17 Bionic and M3 chips have yet to be introduced to users.
The new chips may include variants such as 'Pro', 'Max', and 'Ultra' to reflect Apple's commitment to providing options tailored to different user needs.
Expectedly, the two mentioned SoC lines could utilize TSMC's 2nm process, while the A17 Bionic and M3 processors expected to appear later this year will be built on the 3nm process. Let's wait and see!
Read more: Apple M3 Ultra to feature a 32-core CPU and an 80-core GPU