This is almost explicit, Android P will be released on August 20, and Android 9.0 will finally be completed. Coincidentally, Android 8.0 was released last August.
As a major version of the 10th anniversary of birth (also the 16th version), Android 9.0 will bring a lot of new changes, especially the comprehensive support of the comprehensive screen including Liu Haiping, claiming the biggest change in ten years.
This time, Google is also more open in the preview test phase. In addition to its own Google Pixel series, Xiaomi, OnePlus, Nokia, Sony, vivo, OPPO, and Essential models have also been added to the preview.
I don't know who will launch Android 9.0 outside of Google this time?