I have found a lot of posts on this forum advocating pve servers or bounty systems etc. and other people wanting it more pvp focused. This is my solution.
There will be a new part of the map, in its own server that jumps to a regular server whenever you sail out, that way there will always be people in the area(credit: @xxBRYTExx) with its own privateer/pirate faction that gives you rewards for sinking ships and killing players. The ship you sink and the players you kill drop "souvenirs" that you turn into the faction. You do not get rewards from sinking ships outside this part of the map except peoples loot, but the more you sink, the higher the rewards. That way people still can fight outside, but only for loot, while that part of the map is for people just wanting to battle just to battle. There will be no events (skull forts etc.) and voyages happening in there so no innocent lives are hurt if they want loot. Most islands there will be forts to add to the chaos. This hopefully should not separate the community because they will be on the "same" server and can sail out of that part of the map at any time. There will be a island nearing warning when entering that part of the map so people who don't want to be there can get out. No one will start in there but if you die in that part of the map you will re-spawn in that part of the map. The islands should have lots of supplies so people can still keep fighting. The overall location should be like the wilds to be more dangerous and chaotic(credit to @xbus6 for this part). There would also be days(Holidays/every two weeks) where it is peaceful, so people can explore those islands in the "war-zone" if you will(credit to @Arch-Fable). I look forward to seeing your thoughts on this and will add edits for things I missed and stuff that is added (and I will provide credit to people who thought up of the idea or helped me think it up).
Looking forward to your thoughts on this!
Cheers!