It's in the final phases of testing ... production variants should come out next year. There was a report from a couple of years ago that the WS-20 technical specifications, specifically the reliability, was significantly heightened during the development cycle (being their first high bypass turbofan). Otherwise, it would have come out a lot sooner.As I understand it the WS-20 is still in testing.
Seems like a long time as the first engine was put on a Russian plane all the way back in 2014.
I'm almost certain we will see a Y-20 flying PAF colors within the next five years.