A few replays have been shared where you can see the new German Battleships, Dunquerke and Flint in action. I was going to upload them to YouTube, but Thekoolaidman7 took care of it and we can now see these new ships in battle. Enjoy.
Scharnhorst, Gneisenau, Dunkerque, Flint – Gameplay
Source: Thekoolaidman7 – Reddit
Großer Kurfürst – Gameplay
Großer Kurfürst & Bismarck – Gameplay