Please do not read this if you haven't finished Endwalker - there are SPOILERS for the entire story!!!
After finishing Endwalker, I felt it would be a bit therapeutic to get this down in writing and hopefully bounce some ideas off of other people be they theories, criticism, or confessed mutual bewilderment. Quickly, I would like to stress I am in NO WAY disparaging the XIV writing team. When I refer to the XIV writing team as being detailed yet leaving plot points out, it is to say I believe they did this intentionally and it piqued my curiosity due to how incredible they are at their job. They've done an exceptional job with Endwalker, and I'm brimming with questions / curiosity due to their skilled talents with this expansion.
Either way, at the end of the story... I have some questions:
1. The big question, so what happens to all of the souls that Meteion took and stored in her egg? I thought it was pretty obvious when the shimmering goop coalesced and spilled out. They're going to dissipate back to the lifestream and be reborn. Her egg was to prevent rebirth, it's broken, so they're going to be reborn. Much to my surprise when I teleported back to the zone after the story ended... the goop is still there. Albeit, there are streams coming forth, the soul-jello is still intact. So... what happens to those souls?
-My assumption / answer: The soul egg was so dense with such a massive amount of collected souls, it'll probably take a very long time for it to completely dissipate, which speaks volumes to the sheer amount of souls she took. Otherwise, I have no idea why it's still there?
2. What happened to souls / people who were transformed (thinking about the little boy b/c that was awful and I didn't enjoy it at all)?
-My answer / assumption: I assumed when people were transformed then dissipated, they get sent to the egg-gloop at Ultima Thule. However, much to my surprise, no one in the Scions or Meteion gave mention as to "Now those souls will be free..." or anything of the sort. The XIV team isn't known to let little details like that slide, I mean they even explain that Amaurot will disappear on the First, so if that is what happened to the souls, why wouldn't they mention it? Also, if it is true the souls just disappear, then why were there SO many comments from the Scions saying "but there was something of them in there," or that very last comment with G'raha saying, "where do they go?" or something like that. I don't believe they just get obliterated, b/c why would Meteion need to make the egg in the first place. Yet, it unsettled me that it was left unanswered or even addressed.
3. Why were people specifically turning into the exact some horrifying beasts as Amaurot and why were they titled terminus ___?
-My answer / assumption: When I went through the dungeon and Ultima Thule, I noticed one or two similar monsters in that zone that the people had turned into. I assumed, Terminus was a hint that these monsters were coming from somewhere. Naturally finding comparable monsters in the final zone, I thought Meteion was projecting, through despair dynamis, the peoples forms of destruction / despair - mutated fish people / twisted death machines / murdering monsters. These Terminus monsters were coming from her terminal - collective conscious database - of all the planets she visited. However, when we get to where she is, there isn't a hint of Terminus anywhere. I was positive at the end of the game we would go to the Terminus, and we didn't. Although I'm not completely satisfied with throwing my theory out the window, I otherwise have zero clue what the monsters were / connection to anything... which isn't at all satisfying with how detailed the writing team is in FFXIV.
4. Meteion had the power to literally destroy ALL of existence, yet at the end all she can do is throw some pretty golden sparkles and fly off??? She can't fix ANYTHING despite her seemingly inexhaustible amount of power?
-My answer / assumption: Although Meteion was exceptionally powerful, her power was by wielding SPECIFICALLY despair. Once we beat that despair with our hope powers, she no longer wielded that amount of power. However, we learn through this expansion how dynamis makes up the majority of power in the universe. Meteion runs off of dynamis and apparently goes faster than light. If despair was that powerful and we beat it with hope in the concentrated place of dynamis where emotions can become tangible (scions dying = giving passage) how could she not possibly use any of that power for good? Slow down the universe's expansion which she was previous helping, ferry the souls she stole to the lifestream, I mean literally anything? I have no clue...
5. What happened to our Azem during the Final Days of Amaurot?
-My answer / assumption: Before they retconned the keening / scream from coming OUTSIDE the planet, the scream came from WITHIN the planet in Shadowbringers. I was 1000% positive our mystery foe was going to be Lavos from Chrono Trigger, or more appropriately, Jenova / Soul Sucking Tree (FF9) / Planet Parasite. With that knowledge, I knew where our Azem was, she/he went down into the center of the star to silence / seal / put to sleep what had started the Final Days. Azem was too busy being Azem to deal with the politics of the convocation. Why would there be a need for sacrifice if we could just deal with the problem head on... as we do now being the Warrior of Light? It totally made sense to me and really seemed like that was where the story was leading. However... we know that's not true. The planet's villain was Meteion, and now Azem's disappearance doesn't seem mysterious or heroic, but sad and cold-hearted. I know the XIV writing team won't leave this mystery forever. They expanded upon the 1.0 cutscene characters for goodness sakes (thank you again for that <3). Yet, I felt honestly robbed to 1. not get to see my Azem during Elpis / flashbacks, and 2. not have any explanation knowing Yoshi said this story is over and all the ancients essentially told us to move on we're done with that history of Etheirys. Maybe the Pandaemonium raid will have answers, but otherwise I'm totally lost on that story detail.
I'm so incredibly sorry for the long post. If anyone reads this, I'm so thankful you stuck it out. I'm honestly curious for any sort of theories or answers to really any of the unanswered questions in Endwalker. I'm also curious to see other's unanswered questions as well.