It is very likely that AirPods Pro 2 will be launched in October 2022. It has been two and a half years since the original AirPods Pro was launched on October 30, 2019.
At the same time, after the release of AirPods3, the original version of AirPodsPro is still there. After the release of AirPodsPro2, the first-generation AirPodsPro may be discontinued.
The AirPods Pro 2 will feature a "significantly upgraded" wireless chip over the original AirPods Pro's H1. The chip powers audio-related features such as active noise cancellation, and improvements to the technology could improve battery life and allow you to listen to music longer per charge.
The charging box of AirPods Pro 2 will support making sounds so that users can find the location of the charging box, and will also be equipped with motion sensors to provide fitness tracking functions.