'This town certainly has changed, and not at all for the better'

[Zohar_Lahar]

It also might be a case of artistic license and allegory. As in, the last time we saw the Scions, including Thancred, they had been Called away from their bodies and we did not know if they would ever be back. Seeing Thancred in the trailer confirms that he (and probably the rest of the Scions Called) will be back, probably in their bodies by 5.0 and that in the time they've been gone, the realm has worsened. It's just that saying doesn't sound anywhere near as good (or in character) as what Thancred says.

With that in mind, perhaps he was called to the First World by Hydaelyn/Minfilia?

[zuzu-bq]

Going from Moose's tip, here is the exact quote of Kurinu on Encyclopedia Vol. 2

Created by Amdapori magi to peotect their city, this winged golem is animated by gems infused with the power of white magic. To better contend with voidsent, it is said to have been made in image of transcending beings from yet another plane.

Really makes you thonk.

[YianKutku]

Going from Moose's tip, here is the exact quote of Kurinu on Encyclopedia Vol. 2

Created by Amdapori magi to peotect their city, this winged golem is animated by gems infused with the power of white magic. To better contend with voidsent, it is said to have been made in image of transcending beings from yet another plane.

Really makes you thonk.

Which raises the obvious question of what other plane contains these beings that inspired Kuribu. There's no Light equivalent to the Void, either now or ever (since the Flood of Light just cleanses everything into nothingness). And of the Thirteen Shards, only the Thirteenth's "story" has ended (at least for now); presumably the other Shards are still going, and thus look more or less like the Source, give or take several major events. (As in they're probably going to be populated by Hyur and Elezen and so on, rather than particle nanites or energy beings or whatnot.)

So we could be looking at some other completely different set of dimensions that conveniently has nothing to do with Hydaelyn or the Shards, but is still close enough for the devs to pull critters out of for us to fight. Or at least one of the other Shards is weirder than we thought, even though it has not fallen to either Darkness or Light. Maybe it's a Voidsent who figured out a trick using spotlights and scenery angles.

Or maybe it's just another forgotten Allagan chimera. Because everything is Allagans.

[LineageRazor]

(As in they're probably going to be populated by Hyur and Elezen and so on, rather than particle nanites or energy beings or whatnot.)

*Imagined Scenario... Ascian arrives on the Fourth Reflection, and finds herself standing knee deep in nanites, the result of the local Allagan-analogues grey-gooing the planet thousands of years ago.*

Ascian: YOU GUYS AREN'T GIVING ME A LOT TO WORK WITH, HERE.

[Alleluia]

*Imagined Scenario... Ascian arrives on the Fourth Reflection, and finds herself standing knee deep in nanites, the result of the local Allagan-analogues grey-gooing the planet thousands of years ago.*

Ascian: YOU GUYS AREN'T GIVING ME A LOT TO WORK WITH, HERE.

I want this to be a thing.

[zuzu-bq]

Snip.

They're most likely from the same plane as the elementals and fairies.

[ObsidianFire]

Fairies are artificial constructs that have been essentially programed to have sentience. They live in Scholar Soul Crystals. Elementals aren't in any other plane. They're in both the material and aetherial planes at the same time. We have a pretty good idea of what planes of existence are there and there's really no other place things could be from.

That's why the whole "Kiribu is based off of something for another plane" revelation is so weird.

[YianKutku]

*Imagined Scenario... Ascian arrives on the Fourth Reflection, and finds herself standing knee deep in nanites, the result of the local Allagan-analogues grey-gooing the planet thousands of years ago.*

Ascian: YOU GUYS AREN'T GIVING ME A LOT TO WORK WITH, HERE.

As I was typing that out I was actually wondering whether it was possible for a Hydaelyn-Shard to have become essentially another battleground for Omega vs Midgardsormr, and all that implies for what that world would look like. Super-powerful dragons fighting an endless war against Omega-types with their aether-into-matter shenanigans would probably have made the narrative landscape very different for that Shard.

However, that kind of goes into the whole Many-Worlds Alternate Reality theories, for which fourteen Shards (Source plus thirteen Reflections) would be a bit limiting. So I'm assuming the lore team has some specific idea for the Thirteen Reflections (and not just because Source Plus Reflections equals the series number Fourteen).

[dragonseth07]

Architectural style doesn't line up for the section with Thancred in it. The environment around the WoL might fit, but if it was where Amdapor was then it's been leveled - the few times you can see the surrounding environment it's devoid of structures.

Also, much like with Halatali, I don't see Thancred commenting on it in the manner that he does if it were Amdapor.

Based on the architecture and his comments, I don't see it being any location other than Ul'dah (and much like parts of the HW trailer, more representative of the location than an accurate rendering of the places we can visit in-game).

For the Kuribu bit, it's worth remembering that the gremlin insulting the WoL is an enemy from the Lost City of Amdapor Hard, with the ability Bad-Mouth even. It does exactly what it does in the dungeon (with nobody to /comfort the WoL to cleanse it). We have the boss and iconic trash from the dungeon.

[AtraVeritas]

It is possible that the Kuribu could just be for visual spectacle . After all, in the HW teaser trailer, we see multiple Hraesvelgr attacking Ishgard, and of course that never happened ingame at all.

As for the location, I agree there is a strong possibility that it could be in Ul'Dah, but I personally believe that is is from one of the new zones.