In a press release today, SAS announces that they are suspending flights between Hong Kong and Copenhagen effective March 5, 2020.
They do not specify until when the flights will remain canceled, so I guess this is subject to future demand.
In the same press release they also say they are suspending a number of short haul flights within Europe over the next couple of month, so based on that I think it is safe to say the route to Hong Kong will be suspended at least until the end of April.