I don't know how many people saw the reddit post ages ago before the saga was announced, but there was what looked like an incredibly fake seeming leak that mentioned a dragon of time.
If you've played through the recent episode, we wind up in the Hall of Monuments and Aurene has this newfound fascination with the Scrying Pool. She seems to have this much greater understanding after her ascension of the world, seeing the interwoven threads of time, mists, and presumably all reality.
With that being said, I think it's fairly obvious that the new visions will probably launch from here and arrive directly as a result from her studying of the scrying pool. So, while it could likely just be a device to allow for the implementation of those, I have to wonder if it isn't meant to be much more going forward.
Being the first of her kind, being a dragon that's absorbed a fallen God's magic and gained an ability and connection to the mists as well as numerous other elder dragon's magic... AND already belonging to a family of dragons that are known for farsight, it's within reason to assume that, even if not now, she could eventually gain some control over time.
With that being said, what effect could that have on the story moving forward?
For one, I really hope visions wind up being a way for us to explore things we otherwise wouldn't be able to in the current plot, though fractals to some degree could also serve this purpose. But imagine being able to explore a vision of Arah pre-cataclysm, or Jotun before their fall, a dwarf in the height of their civilization, an asura before they were pushed from the depths, or witness the birth of some of these mysterious beings in lore like the spirits, or the elder dragons, or the celestials. Or for that matter, Malyck's tree and the adventure he embarked on. Or Joko as he became a lich. (Though unlikely as that ship seems to have sailed and we've had a few hints that seem to further imply the Djinn and wish theory.)
There are so many possibilities this could open up to really dive deep into lore without being forced to read about it in collection items. (Which they don't even do anymore anyway.)
As far as the overall story, without reliving the past, Aurene having some deeper connection, ability, or sphere of influence of time, could be a jumping off point for some other exciting plots moving forward.
We could have long-gone beings from the past being brought back.
For that matter, though I'd prefer it not go this route, we could up in a situation where Aurene's power over time actually winds up unintentionally being a more destructive force than the other elder dragons. (This also seems unlikely, but is really just meant to explore the subject.)
A jumbled mess of what if's and theoretical, but it is an angle they haven't really taken yet. It's most likely just setting the stage for the new visions with little long-lasting impact on the story, but food for thought and nutty speculation.
Despite having the new saga and expanding of lore (though not nearly as much as I had hoped), there doesn't seem to be much excitement or crazy speculation in these lore forums these days. Not sure if that's general lack of interest from the playerbase, or if the story just hasn't reached the point that people are wanting to even bother speculating, or people became disinterested in lore because of previous story developments.
But it's still fun to speculate and I still have a passion for the story. Despite the game seemingly drudging downhill for sometime now and the focus fading, it still has so much potential with gameplay and still has so much story to tell. And that's just with building onto or elaborating on pre-established lore, without diving into anything new for the franchise.