Where is this? [2.5 spoiler]

[WyrahFhurrst]

There's no reason thus far not to think that their army has nobility, power struggles, and heretic-hunting inquisitions just like the Ishgardians.

It's possible that Nidhogg's reign has passed, or that he yet lives, and we will get to see the powers shift.

Their army seems to big, and their nation too capable of holding a location, for them to not have dissent in the ranks like any other nation at war. I look forward to seeing what kind of allies/neutral parties we may encounter.

Except that we know that they have a King (Nidhogg) and at least one Lord (Midgardsomr). I think it's likely that it's yet another Dragon Lord leading his dragon vassals/underlings into a fight with the Ishgardians.

Also, I think it's interesting that he (the dragon from the cutscene) mentions that his people have "heard the song" when the whole war is called "The Dragonsong War."

[Kotemon]

It looks like that one large castle in the distance by the gates of judgment.. It also has that telescope as part of its features.

Edit: If I understand it right there's a small keep on the bridge about mid way where that telescope/pointy thing is

[Aryalandi]

I am going to agree with the obvious answer everyone else gave.. i am also going to hope that's not Vrtra (pile of 200 dead at zone before GM's called, the horror!) Because that would be (amazing!) bad.. unless he is on our side at some point.. I am guessing its not a super-important dragon though unless they want us to speculate.. which they always do.. lol..

[Alice_89th]

Hey I just noticed something.

Coerthas is full of those things, they are probably anti-dragon weaponry, so it isn't surprising that there are one or more of them at the city. There seem to be mountains surrounding the part of the bridge our mystery dragon is standing on, which makes me think he is standing at the Gates of Judgement, and not at a possible similar gatehouse at the other side of the bridge.

There was some "whaa" stuff in the trailer. This is not one of them.

It's just beyond the Gates of Judgment. The dragon is landing on the bridge to the city.

But that means he is landing in a way that blocks the way out, not in. Which is interesting in it's own right.
EDIT: Unless he is landing just outside the barrier like Alberel suggests. In which case it is probably more of a bragging speech before attacking the city (I assumed he would be talking to the player character).

[Alberel]

"My people have heard the song; Ishgard will burn" that makes it sound like he isn't from Dravania but some other place that's taking their side.

It's been implied a few times that much of the Dravanian horde has been in some kind of hibernation for years. Nidhogg for certain has been sleeping ever since his last assault, and the end of the Dragoon quest line sees his sleep disturbed to catastrophic effect.

Recall Urianger's verse at the very start of the trailer:

'The northern sky doth burn full bright, upon the wyrm lord's call,
The red behemoth beckoneth, and flame consumeth all'

The 'song' the dragon refers to is likely Midgardsormr's call, the same call he used to summon the Dravanian horde to his side when he assaulted the Agrius. Bear in mind also that Ishgard itself is protected by a barrier of some kind that stops the dragons attacking the city directly. We see Iceheart disable the barrier in the Part 2 trailer and the dragon is actually standing right in front of where that barrier met the bridge (the glowing blue line that stretches across the ground).

I'm pretty sure they're all Dravanian; they've just been summoned to battle as their lord has been resurrected to summon them and their enemy is now sitting defenseless. I'm fairly sure the Battle of Ishgard mentioned in the slides will actually be that scene from the CGI teaser we were given, i.e. defending Ishgard from the Dravanian invasian.

[Grayve]

The astrologians in Ishgard watch the stars to predict the movements of the Dravanian Horde, specifically I believe the Dragon Star is mention in the Coerthas quest line.... perhaps they hear a song out of space. Like, say, from a satellite.

[Chewy2nd]

Talking about the CG cutscene, I did see some speculation that this could be the CG midlander, I doubt it, but it'd be pretty cool if he finally showed up, lol.

[Alice_89th]

We see Iceheart disable the barrier in the Part 2 trailer and the dragon is actually standing right in front of where that barrier met the bridge (the glowing blue line that stretches across the ground).

!! That makes sense.

Talking about the CG cutscene, I did see some speculation that this could be the CG midlander, I doubt it, but it'd be pretty cool if he finally showed up, lol.

I doubt it as well.
But there is a certain Dragoon that vanished at the end of a certain job questline, and I suspect he is back.

[treuhavik]

My first bet was Nidhogg, whose return was foreshadowed in the Dragoon story. However, this dragon appears to have both of its eyes, whereas Nidhogg should be missing one. Now, I have no idea, lol. Tiamat? Ouryu? Vrtra?

Yeah my first guess was also Nidhogg but well, Two eyes.

Two things could be here :
=> botched theory : the "eye of Nidhogg" is a figure of style and it's just a jewel connected to the dragon king (a la LOTR)

=> probable theory : we're witnessing the arrival of the 3rd dragon king, whom we have no words yet besides the fact that he never showed in Eorzea yet iirc (I think he was named somewhere but can't remember. Maybe Tiamat)

I say it's a third Dragon King. Nidhogg is suppose to have a missing eye. Sir.... what ever his name was, that gives you the eye of the dragoon mentions it only having one eye when he saw it like 20 years ago or something. So it's likly a Dragon King or lord or something involving military rank for an invation force.

Reposting from FC forum:

(...)Location aside, I'm pretty confident it's Nidhogg. All the references to awakening from slumber...and the fact that he's seemingly the leader of the horde (aka King). The only other dragon king we know of, aside from Nidhogg, is Midgardsormr and he's...well, otherwise occupied.

Until I see a screenshot of both eyes in that dragons' head, I'll continue believing it's Niddy.

More on this. A lot of people are saying it isn't Nidhogg because both eye-sockets glow red, meaning he has both eyes, which makes sense (See: Dragoon Job Quest for explanation). However, to those, I'd like to pose another question; What other dragon could have more motivation to destroy Ishgard than the one wounded and sent into hibernation by it's founders? Are we really saying that, while it's possible for people to transform into dragons and people to have sex with dragons, that it's impossible for a dragon to regenerate an eye? C'mon now.

Anyway, it's of course possible that it's another dragon with some other reason for leading the horde to terrorize Ishgard. Sure, why not? But there's even less supporting evidence here.

While me and [friend] were chatting on the subject, he made mention the possibility of the dragon we see in the trailer being Fafnir, due to his and Nidhogg's previous relation. This led me to the possibility of Fafnir preceding Nidhogg as he has in the past, albeit in other ways. Fafnir could be Nidhogg's 'right-hand', announcing his master and kin's awakening and delivering to Ishgard this message of doom. We may even have to battle Fafnir in 3.0 to gain access to Nidhogg.

On a slightly different note, I recently had a thought about Midgardsormr's title - Keeper of the Lake and King of Kings. I always thought of this as saying that he is the ultimate dragon king, which I'm still sure he is(was). BUT, if we take "Kings" a bit more literally, that means there are multiple dragon kings, Nidhogg only being one of, not the other. This opens up the door for allllll our favorite FF dragons to make an appearance, or at least some mention.

[lololink]

Although we are all thinking that this dragon is leading the attack and that he might be niddhog, remember it's a trailer, we just have one scene, we don't know if he is niddhog, he could be one of his general or something, they could keep Niddhog as a fight for Heavensward.