This is actually what was said

The Unending Codex is still in the planning phase, but within the next ten years, we may eventually need something that allows people to play the game without starting from the very beginning, which is what we’re preparing for with this feature. If possible, we’re hoping to include entries on important lore concepts such as aether and the six elements.
https://forum.square-enix.com/ffxiv/...=1#post5874863