I think they are still trying to flesh out capital ship models from other navies. At this point, they have a good chunk of iconic Great Britain hulls, a hand full of USA and German hulls, and a couple generic ones that I cannot identify. At this point, I would not be too surprised if French hulls like the Courbet Class or Italians like the Littorio Class are next on the to-do list. Maybe a couple of the crazier designs like the German Deutschland Class or the French planned Lyon Class battleship with a frankly ridiculous planned main armament of 4 quad 340mm guns. Actually now that I think about it, introducing the French BB hulls would be the perfect excuse to implement quad turrets and the all-forward main armament sine that was a French thing from 1920's-1940's.