To the moon!

[Enkidoh]

I don't remember where I read it, but...

Spoiler:

Apparently, the moon is Zodiark, in much the same way that the world we play on is Hyaedalyn.

If that's true, it certainly seems likely that the moon will play an important role, whether we actually go there or not.

I don't believe the actual name of the primary moon is Zodiark as more just Zodiark is contained within, instead, there is more evidence to suggest instead that Eorzeans at least seem to refer to the primary moon as Menphina, after the goddess of the Moon (the main 'proof' for this was that Dalamud was called 'Menphina's loyal hound', not 'Zodiark's, which makes sense, given that Dalamud orbited the Primary moon not Hydaelyn directly - the Astrolabe weapon shows this specifically).

Regardless though of what the primary moon may or may not be called, I agree it is likely that the story will probably take us there to finally destroy Zodiark and His erstwhile Ascian flunkies for good eventually, although how we will accomplish that is anyone's guess, either through mechanical (specially adapated airship like a FFXIV version of the Lunar Whale, or maybe even one of the Allagan Ragnarok-class Internment Hulks) or aetheric (read: teleportation) means.

An interesting coda to this is apparently the original plans for 1.0's storyline was that the player was meant to eventually travel to Dalamud sometime in the (then) future; this changed when Yoshi took over as director and when the decision was made to replace 1.0 with ARR and to justify the changed landscape by some kind of apocalyptic event, Yoshi asked if it would okay to "Bring it (Dalamud) down," and well, we kind of didn't get to Dalamud, more Dalamud came to us.

Also I think it's rather redundant now to regard Zodiark's existence as a spoiler, given it's pretty much common knowledge now. Hence I haven't spoilered it.