Originally Posted by CPH-Flyer

I expect irregular train services, but DSB has been included in strike/lockout warnings.

If it is very important to be certain of the transport, my best option would be to book one of the coach companies now. They are not very expensive, and time wise not too bad compared to the train anyway. Probably just a bit less comfy for working. Don't know if it can be cancelled if the trains are are running on the specifics dates, but this would be the better safe than sorry option.