Coming from another age of sail game, this NA is very good already. Things that could change:

1) Please let new players access PVE server...either pay or free.
2) Caribbean server is great, lots of PVP and changing port ownership, pls give access to everyone for Navy Guns, all guns, Permits(going away?), upgrades and Woods. (Ability for people whom do not want PVP or Clan up...either thru missions or crafting or PVE hunting in NON-PVP areas OR just access to PVE server)
3) Trading is needed just as battle, pls more options for trade vessels. Need higher cargo higher speed as it takes long hours to make money (Player base of this era sim game is probably not children with a lot of free time). Trade goods spawn rates more frequent please, so many can make money, buy good ships, buy the expensive in-game insurance and PVP.
4) Make trading little easier. it is very time consuming for 80% of ppl i encounter to make 2M+ reals...either it takes too long and ppl just dont want to do it or confusing for ppl....i dont know, but this is what i observe. Ppl need money to build or buy PVP ships and the expensive insurance, if not pvp grow slow.
5) Decrease insurance cost so pvp is more affordable for crafted ships.
6) Maybe also an option for DLC insurance policy to be used on player choice of crafted ships.
7) Please make every port have unique value....certain ports with very good port items are all grouped together, easy to monopolize port item....please spread items out to other ports and please have multiple special items instead of just one per port.
8) Pls give port item access to the country men of the clan that owns a port. Maybe clan that owns the port will have special price for the items, while country men will have to pay premium price which will help the income of that port clan owner. May help incentivize PB participation and more income for the clan owner.