Reading this always brings me back to Doctor Who, especially now that it's been on a nostalgia run and keeps bringing back old faces. The Doctor is in a similar "watching everyone around them die" position, but they also have a time machine and still refuse to go back after parting from companions. I always wonder how it feels to just know the world is moving on a faster pace than you are and having others pass so much in your lifetime. But with Aesir I love his positive outlook toward it all. He doesn't have a time machine and just moves forward. He also will go back to places and excitedly look toward the changes. I do hate that he wasn't able to go around the stalls, but I love that he's just glad to be back and experiencing he changes.
Also, is that foreshadowing? Is the endgame plot moving in the background. I wonder how the Titans prophecy/legends/stories will end up. Also, is there a chance that Aesir isn't from a different world but just our world was burnt down and the dragon wiped the board after humanity went too far (feels like we're going too far now)? As of now it just feels like Aesir is making buddies with all these legendary figures.