First, you're coming off a little needlessly aggressive here. I'm just having a discussion here, there's really no need to get your back hair up. The reason why I don't think that's Ifrit is because XIV's Ifrit is drastically out of the norm, whereas every Astral we've seen so far in XV has had a deeply traditional design. Titan, Ramuh and Leviathan would all fit squarely in a Final Fantasy from over a decade ago. The creature is also clearly reptilian and draconic and we know Bahamut is a shoe-in for XV. That being the case it makes more sense to me that that dragon-like figure is Bahamut alongside a couple other potentially unrevealed summons like Shiva and Odin. The reason Bahamut has those smaller wings rather than his usual giant wings in this particular piece is because he's in a group shot where he's sharing a lot of space with multiple summons. His wings would be obtrusive to the overall art, it's the same reason the summons aren't exactly to scale with one another. The wings are there, they're just artistically diminished. I've highlighted their outline as I see it. Unfortunately I can't find a high-res image of the Big Bang anymore, so bear with me! I used to have one but I must have lost it along the way.
The figure I think is Ifrit is right here:
He gets a little cut off in this crappy low-res shot, sorry again! This guy looks extremely in line with what one might expect Ifrit to be given his average looks across his previous incarnations- especially when you take his more classic designs into account.
And just to tackle the issue of stylization a bit more, let's remember that this is Amano's rendition of Fang, Vanille and Ragnarok:
I can't find a good image for the artwork either, it's annoying...
The figure you think is Ifrit, here's a better image of him (sort of), and it doesn't resemble Ifrit at all in my opinion.
It has a weird second face or something on its side... I'm not really sure. Then again, there's a lot of stuff in here I'm not sure about.
Another point I'd like to mention as well is that what is perceived to be Bahamut in the Genesis artwork takes on a human form. Either it's Bahamut or Diablos, as we know that all Astrals in XV are from past Final Fantasy games. If Diablos or Bahamut is in the game, then what does that make the Amano figure? We know that Titan and Leviathan match their Genesis artwork from the Amano artwork, and also what is assumed to be Shiva as well. We also know that Leviathan, Titan and Ramuh also all match how they look in game. There's a huge disconnect here between the two artworks where many other Astrals match up perfectly fine.
Here's an image someone made some time ago analyzing the Amano Big Bang artwork:
They assume that figure is Diablos, which I don't really agree with, but as you believe it to be Bahamut the lack of prominent wings would be intentional. However, it wouldn't match what is perceivably Diablos in the Genesis artwork again, as Diablos would be taking on a more human form.
Here's also a quote from Tabata about the Astrals:
Tabata said:
There is a certain Eidolon, one of the ones that you've seen previously, which appears in a completely new form. It's a very different take on the same old character. There is also a very good story-based reason as to why we are sticking to more traditional, familiar Eidolons in this game. The reason for that is because this time around, the Eidolons play a very big part in the story and are very much an integral part of the game world. So we thought it would be better to have the traditional ones, the ones everyone is familiar with, to see how they fit in the story and what is the backstory behind these characters, rather than having completely new Eidolons.
Source:
http://www.finaland.com/?rub=site&page=news&id=5516
To me, this lines up perfectly with Bahamut being depicted as a human form similar to how the Myth/Genesis artwork has depicted him. There are only a few summons in the game, Titan, Ramuh, Leviathan and Carbuncle all look normal, many have speculated Ifrit, Shiva and Bahamut as others that might be in the game. Looking at the Amano Big Bang artwork, Shiva would definitely look the same, so the only other options would likely be Bahamut or Ifrit. If it was Ifrit, he certainly wouldn't look anything like the black and red creature from the Amano art, nor would he look like the creature in the GIF from this thread. However, if it was Bahamut, he wouldn't look like the black and red creature, but
would look like the human winged creature people think is Bahamut in the Myth/Genesis artwork.
Speaking more inline with the thread topic, I believe the creature in the GIF is actually one of the daemons depicted in the bottom of the Myth artwork:
It would make sense knowing that Niflheim is in control of these Daemons, and that they are depicted as skinny beasts. The prophesy stated that the King would do battle against the darkness and this seems to be mirroring that very same concept and would make sense. We even see a similar type creature to the one that attacked Noctis as a child and again in Brotherhood towards the bottom left near Ultros who is also again another beast from Niflheim. One of the creatures down here also has jagged horns as well, and might be connected, but we really don't know for sure.
There's also this from the Afrojack trailer:
Which many would suggest could be a fight against Ifrit, much like many suggested this image was from Shiva:
If this was Ifrit, you would notice the party is not dressed in the Kingsglaive attire they are in the GIF which would mean the beast depicted in the GIF isn't Ifrit. However, this is
NOT conclusive evidence, as there's nothing to say the fire is from Ifrit and not something completely different.
The main point here though is there is clearly more to the story that people are leaving out in their analysis, this is why I tend not to speculate on something until there is more substantial evidence.
I am sticking to my point of view and I look forward to seeing the next reveal for XV and I hope we get to see more of the Astrals to confirm or deny my theory.