I think it's safe to say the changes on the ships are for front firing cannons. I was first really happy when I first saw them as mainly a sloop user. "Finally we will get a combative advantage" I thought.
But then I see it's the same on all of the ships. And this has me concerned. We that mainly use a sloop are at a huge disadvantage on the sea. Our only advantage is our turn rate and speed in headwind.
We lack speed,firepower and manpower on the sea to be a threat.
So seeing this being something all the ships get, has me concerned. It will make it even harder for sloops to get away. And I think it should be something only the sloops should have to give them a combative advantage when they lack so much compared to the other ships.
That said it could be for something completely different. But the cutouts fits perfect for cannons...

