There really isn't anything to do in game.
PVP? I did like 66 matches, won 65 of them; it got me rank 10. It is a massive grind and every match is pretty much the same. It got boring.
Chocobo leveling? Why? It's useless. You can only use it outside of instances, and there's practically no fighting to do outside of instances... and when you do, it's a joke. The fights are extremely easy, offering no challenge at all. The chocobo doesn't really help or anything. Besides that, when I DO want to do something outside of an instance, I usually sit in a queue while I do that... and I can't with the chocobo. He's just pointless. Even if I DID level him, his contribution is so minor to something that's already faceroll easy to begin with. If I want to painfully grind to level up the bird, there's PLENTY of other games and things I can do that would be a lot more enjoyable, and actually offer some benefit.
Treasure maps... again, pointless. The only thing really worth from it I can see are the minions. I bought them for really cheap. That's that.
Achievements? The majority of them offer nothing; only a couple actually give anything interesting, and they're usually "Do X a million times." Oh boy. That's fun and engaging. The points are brownie points, and if those actually make you enjoy what you wouldn't otherwise do/enjoy, then something is wrong.
Level up jobs? I maxed them. Even this was a stretch. I only ever really play SMN; I enjoy it, and it's my favorite. When I want to go DPS a dungeon, I can play SMN (which I like the most) or play something else that I don't enjoy as much and do worse DPS/contribute less to the group. Yay. As for tanking/healing, yeah, I can do those now, and that only required me level ACN and PLD. Woopie. Before you say anything, yes, I got all the relics too.
As for the content itself, it's all done. I could run it over and over again, and I sometimes do it again for the "fun", but there's only so much fun to be had. Nothing really else to get out of it. I could gear up alternate jobs I will never play for no reason, but that's still stretching myself to try to FIND something fun to do. I don't care about the gear on those jobs; I'm never gonna play it. I went and did the extreme modes because they were fun, but they didn't reward anything I needed besides Garuda's ring, which I got out of the first kill. The weapon for Summoner is a downgrade, so there was really no reward behind it besides the fights actually being engaging and interesting.
Daily quests? These are a chore. In most games, the dailies actually reward something for you doing them; they don't even do that in this game. There's no reason to do them. After month(s) of doing them you can spend tons of Gil on a mount and a pet, but I already have like 6 mounts and tons of pets. I'm not going to ride those mounts (I already like my current ones), and I'm not going to use the pets. Why push myself to complete a chore I don't want to do/have nothing to benefit from? And yes, it's a chore, because there is absolutely no difficulty or interesting gameplay to be had from doing the dailies, and no story to follow. What's worse is when you have to just sit there and stare at a wall while you wait for a FATE to spawn for one of the dailies.
The game doesn't have longevity. The game was fun when I had stuff to do; now I am maxed out item level 90, completed all I want to complete, and there is nothing to work towards, nothing to gain. I had more longevity and interest in v1.0 when the game took forever to level, because I would login and go "time to level up my character!" THAT was interesting. THAT was fun. Even after leveling my CNJ to max, I still could level THM so I can mix the two classes together. Using Chainspell on Shadowsear was a massive benefit to be had, and made it worthwhile to level both casters. Working on improving my character in any way, and improving my ability to perform in a multiplayer scenario is interesting and is something to gain. Working toward a meaningless little minion/mount does nothing for me or anyone else.
FFXI did this correctly too. I started playing December 2013, and I played for days at a time nonstop because I ALWAYS had something to do. Whether it was leveling up my main job or my sub job, going and getting gear that would boost my effectiveness, unlocking things... there was always something to do, and they all provided real benefits. At times it even felt like there was TOO much to do... it was overwhelming! That's great! There's so much to explore and find and do, so many quests to follow that actually provide story or interesting rewards. How about FFXIV?... if I login, I STRUGGLE to find something to do. The best I can ever find nowadays is to help a friend accomplish something (an instance, if they even bother to login).
It sucks, cause I like the game. There's just nothing to do. I want to play it and enjoy it. But the game is making it very hard to do so. Probably not gonna renew my subscription until a lot more content comes out that I can enjoy and experience.