Release of differential sync delayed again?

The https://www.microsoft.com/en-us/microsoft-365/roadmap?featureid=33412 was updated again.  The release timeframe is now Q2 CY2020; meanwhile the status is still “rolling out”.

Is Q2 CY2020 the projected time of roll out completion, or does it mean we’re getting yet another delay (of a feature that was once said to be coming in Q2 2017)?  Does anyone currently have this feature?