The Starshower

[Zohar_Lahar]

So now we know that Zodiark is in the Moon orbiting Hydaelyn (apparently). This leads me to think the Starshower premonition from the Echo is depicting one of the effects of the final Rejoining. If Zodiark were to emerge from the moon like a hatching egg, then a significant bulk of lunar matter is going to fall onto Hydaelyn's surface. A starshower more intense than what was seen in End of an Era.

This makes Dalamud's installation in orbit by ancient Allag quite interesting....given what it was used for and how it was remembered.