If you are waiting for the latest ColorOS, the ColorOS 7, it is coming on November 20, 2019. From the early teaser, the UI style is looking similar to the previous beta version.
The bottom bar is upgraded to Android 10, and the transition animation is more comfortable. ColorOS 7 will not just be seen on the Oppo smartphone, but on Realme smartphones as well.
With ColorOS 7 set to release on November 20, you can expect Oppo to also reveal a list of smartphones that will get updated to the latest ColorOS7 soon.
Realme will also likely to announce its exclusive version of ColorOS 7 around the same time.