The Relic Weapons and justifying why the Jobmasters have them

[TinyRedLeaf]

In the end, I think the cleanest way to look at the lore will be to assume that one great adventurer from each class guild gets tangled up in events that led them to take up the mantle of a "job of old" on their journey to banish the darkness. These adventurers then come together as one and work together, the "canonical party," so to speak, represented by the CG Party we see in SE's big cinematic. Each one person, each inheriting one job, then takes up the historical restoration of one relic, associated with that job, and upgrades it until it becomes the same as those that the Zodiac Braves wielded (and maybe beyond, who knows.

That's the way I interpret the lore as well.

And this seems to have been implied early in the storyline as well, when you meet the Mothercrystal for the first time. If you recall, there were other adventurers with you (or, at the very least, one other elezen and roegadyn) at the the time. So, it's not too far a stretch for me to imagine that those guys also went on to become the epitome of their respective classes and jobs.

Lately, I've also begun thinking further about some of the themes of the game, and one of the predominant motifs is the "Echo" itself. If you think about it, much of the game is about reviving old knowledge to renew the present and refresh hopes for the future, be it in terms of us adventurers recovering the skills of ancient predecessors, or delving into the depths of the Coils of Bahamut, or ascending the lofty heights of the Crystal Tower.

In a sense, we're all trying to re-create a realm that's an echo of halcyon days long past. I don't know how well this interpretation actually sits with canonical lore, but I do know that I personally like it enough to try working it into my personal "head-canon" for Lyland.