Rostock, I assume on the German side. Took the ferry with my car, was curious about the tracks at the edge of harbour.
There’s still a direct Hamburg–Copenhagen connection via that ferry, but it’s now a normal Eurocity.
[1] http://www.hitachi-nico.jp/en/product/land/transmission/dies... [2] https://www.youtube.com/watch?v=RdFCQE61mSA
I pass through Nørreport station fairly often, and I notice the train to Hamburg if it's passing through.
I tied to book a 100% train/ferry route and it wasn’t available for my travel dates.
Haven’t seen much about related works on the german side but apparently they occur.