Gonna remind you, like the other people, that's all coming in short term time periods. Most of that structure you mentioned? Guess what? Same stuff we got with ARR and HW. And you're defending it, which is incredibly laughable.
4.1 through 4.15 is...
> Alliance raid ----------- This was in ARR
> Light-Party Dungeon ----------- This was in ARR
> Main Scenario quests ----------- this is all of FFXIV online
> New PvP mode and map ------------- we had new pvp modes since ARR. Sad part? DEVS. DONT. PAY. ATTENTION. TO. CHEATING. Know what else we got? Win trading! Your point is invalid here. Also botting. Just FYI.
> New housing area and updates ------------ We got this in ARR.
> First ever Ultimate raid --------- We called it coil back in my day. Again, one piece of endgame raid content.
> Extreme trial ------------ also ARR content.
> Squadron dungeon content ------------- something new to HW but capitalizing. Oh, but it's less XP for doing it and older content, not newer stuff. That makes total sense. I'm gonna take my level 60-70 jobs and grind through older content 15-49/50 for LESS XP than POTD and/or relevant dungeons. Smart idea!
> Hildibrand sidequests -------------- since ARR.
> Beast Tribe quests ---------- also arr content we had.
> Perform music feature ------------ something new and interesting, but defeats 4.1, which was pushed back to 4.2 cause of packet delay. So this was thrown out for 4.1 content.
> Custom Delivery content ---------------- re-hashing already established content from HW.
> Deeper treasure map dungeon with new mechanics ---------------- This doesn't do anything if there's no current gear and/or weapons (both preferred) at the same time, and below tome level gear. Also invalid argument.
> Many major UI improvements ------------ happening and improving since ARR.
> Cross-world friend list, tells ------------- new, and should have been in the game since forever ago back in ARR. Only now being implemented.
> Raid roulette + adjustments to Labyrinth ------------ also something they should have added when raids came out. Something we'd been asking for years. And only now did they decide to do it.
> and the usual job fixes, new mounts, etc ------------ again, since ARR.
Most of what you described, has been un-compelling content. It's the same content we had since ARR. Again, the structure hasn't changed.
-New dungeons for tomes to grind at 30 tomes a run
-new primal
-new ex primal
-new 24 man raid
Out of all that, you only named two things that will be relevant. the 24 man raid at gear at or below ilvl current, and ultimate bahamut, which, if it has gear equivalent to Omega Savage right now, then we got some horizontal progression content. Squads are nice, but if i get less xp for running an instance solo, while good for down town because I can control the npc's behaviour, it's not gonna make me want to run it if it's old content. But they need guinea pigs to test it in newer dungeon content.
But, as I've learned from world of warcraft forums from someone:
"basically every MMO is about redoing the same content over and over again. Liking that or not is personal taste."