Current plan for closed beta is this
All ships will be brigs from unarmed to 20-22 gun ships. But every ship will be so unique (and named) you wont recognize sailing and combat performance between them. Random colors are also planned.
Ships will range from shabby leewardly boats that can sail 6 knots broad and can never finish "kempf maneuver" so unstable they are - to fast windwardly spectacular closed haul sailors than can lay still and straight like an old helmsman wife, and you as a captain will spend a lot of time searching for a perfect ship to your taste.
Once this is all done and tested and optimized with you guys. We will then start adding more ships to AI
But it all is still depending on how war in Ukraine goes. It is a miracle its being developed at all.