I also wonder if they will try to fit in the significant city of Gdynia? It is so close to Gdansk so it was never in the base game.
Well, Gdansk itself also wasn’t in
the base game and became the part of the first map DLC

.

Technically,
port of Gdynia is present a little north to port of Gdansk,

but you can see its name only in the ferry selection window:

Actually, there are more unmarked ports connected with named cities, like Hull (near Grimsby) and Harwich (near Felixstowe).