This is gonna be a long post.
Becoming pirate legend over a year ago was kind of a big deal since it was much harder to get loot.
Going into the PL hideout was really cool with the flashy lights and dramatic music revealing the hidden stairs.... but that was somewhat short lived.
There was also rumors about having a legendary captain rank someday after getting PL10.
Some ideas I had for PL10 with "legend captain rank" players :
1- Being able to create our own private island outside the SOT realm, every time you would log in, an invisible portal could randomly appear on any unused square of the map. That portal would be marked only on your map inside the ship. Once the ship is there any PL10 onboard the ship could play the legend song, a cave could come out of the water with the same flashy lights + dramatic music like PL hideout and once inside the ship could be ported to a hidden island surrounded by red sea owned by whoever played the song 1st.
Creating these islands could cost an absurd amount of gold, being able to add cosmetics and pretty much anything available to regular islands could also cost lots of gold including NPC shops but maybe not guild masters. It would make gold useful again for the insanely rich and of course the more gold you have, the bigger the island you can make.
2- Those private islands I mention in #1 could also be used in a new arena mode where your team need to defend that island VS opponents, so building towers with canons would definitely be a MUST have.
Better have some very rich PL10's in your friend list for that one. :P
3- Summoning the megalodon when it 1st came out was cool, again PL10's could get new summoning quests like once a day or 2 and be able to summon various new monsters : A sea serpent, A giant Moby dykk whale big enough to swallow even a galleon (breaking all mats in the process and need to attack the inside for the beast to open its mouth and get out of there), also a crazy hard version of the Kraken where its entire body will show up and of course this time we kill it for real.
How about a sea dragon, I mean a flying boss huh?
A crazy big new admiral skelly ship 3 or 4 times the size of a galleon with a dozen canons on multiple decks on each side of the ship.
Forming alliances would be much needed for these bosses and they could give unique rewards like a dragon's head figurehead for example but with a very low drop rate or from commendations after killing em many times.
If you want it more dramatic they could only be summoned while being in the middle of the storm. :P
4- For everyone some other new creatures like harpies flying around the highest peaks of SOT islands could be part of new quests, these creatures could grab people and drop em off from very high killing us from fall damage. They could also have nests on the rocky formations everywhere on the map so they could also attack passing ships grabing people and dropping em in the water (2 or 3 sharks could instantly spawn from this kind of attack).
5-Evil mermaids could sing songs at night, hearing it for to long could give effects similar to being drunk (reverse controls, dizziness, automatically picking up loot if you walk on it and auto jump if close to the side of the ship) those mermaids will attack people who fall in the water and they can even steal loot that's in the water.
Playing music could help prevent this or teammates could also attack you to break the spell.
6- Sometimes the storm is part of the arena battle so I think on rare occasions the fog should cover the all map for the entire battle.
7-A new curse event where upon dying we are stuck on the ferry of the damn and Davy Jones is nowhere to be found.
This ship would not be the true ferry since only YOUR team could be on this one. There could be a new quest line similar to the shores of gold but this time on a new map in hell or whatever the realm the ferry of the damn is.
We could actually drive that ship but without a map to help us so would need to find clues to pinpoint the location to where to go next meaning the entire run would be going nearly blind.