TurboJet says :
Important Notice: In accordance with the HK Government announcement, effective from 00:00 am, 4 February 2020, Hong Kong Macau Ferry Terminal in Sheung Wan will be temporarily closed. Meanwhile, all the sailing services between HK and Macau will be suspended until further notice.
ONEBUS says (original emphasis)
One Bus have reached a decision that will suspend all services from 25th March 2020
All companies seem to have taken the same steps and cancelled every mean of public transport between the two regions.
Outside of a 25h flight route, is there a way to go between the two regions using public transport?