Please consider using a location from Gyr Abania for a future dungeon new/Hard Mode
If you were to compile all the Stormblood dungeons we've gotten in all of the patches you may notice something.
61: Siren Song (Technically from Limsa going to Doma but marked as ???)
63: Shisui of the Violet Tides (Doma)
65: Bardam's Mettle(Doma)
67: Doma Castle (Doma)
69: Castrum Abania (Gyr Abania)
70: Ala Mhigo (Gyr Abania)
Temple of the Fist (Gyr Abania)
Kugane Castle (Doma)
The Drowned City of Skalla (Gyr Abania)
Hell's Lid (Doma)
Fractal Contiuum Hard Mode (Albathia's Spine/Azy Llha)
Swallow's Compass (Doma)
The Burn (Doma, yes it is still considered Doma)
Saint Mocianne's Arboretum Hard Mode (The Dravanian Hinterlands)
The Ghimlyt Dark (Gyr Abania)
We can add up the totals of these dungeons as well based on region:
???: 1
Albathia's Spine/Azys Llha: 1
Dravanian Hinterlands: 1
Gyr Abania:5
Doma: 7
Gyr Abanian areas are incredibly underutilized as opposed to the Doman ones. As the story for 4.0 drifts around 60% Doma and 40% Gyr Abania. Now that we have given them liberty (and warded off the Empire as of 4.56 for the time) it would be fantastic to have us visit an area not properly utilized during the Empire's reign over the nation or to revisit a previous area and see a completely new take on it.
If you would like some recommendations here are some of my personal thoughts!
Dimworld: Possibly going into the Saint Mocciane's idea, but I'd love to see a marshland explored or even the caves where the White Mage 70 Job quest takes place.
Nyunkrepf's Hope: The giant ship that is hanging out in the Peaks. It was used by people living in the Hinterlands to travel during the raging storms of the Sixth Umbral era and ended up being located in the Peaks. Those going on the ships would later form Sharlayan which we've all become accustomed to but the ship remains still in the canyons. I'd love to have a dungeon to explore it as it would be a great chance to show more Sharlayan lore but could also have The Peaks related enemies to fight inside it (assuming they're using it as a nesting ground).
The Ziggurat: The huge upside down pyramid we visit originally during the our first visit to the Peaks. I feel like getting a chance to explore the inside of it if possible. I imagine something of a tomb like Qarn, but maybe exploring the top of the pyramid and fighting a cool griffin or something native to the area. It's filled with lore between Mhachi and Ampadori so it would serve as a fun callback to the two of them.
I actually capped at the text limit so I figured I would post under it. xD
If we're making a Hard Mode version of the areas (I feel Ala Mhigo and Ghimlyt Dark may be too much of a stretch) I'd love to see something like:
Castrum Abania: Being reclaimed by the Ala Mhigans it's used as a training ground similar to Hullbreaker Isle Hard Mode. It still has the mechanical feel as it was built with in mind but instead of that it could maybe could be varied up enough to have that charm.
Temple of the Fist: The one I would most likely expect to see if this were to happen. Newer tougher mechanics to work around with new enemies in the temple and new bosses. Maybe have upcoming monks follow you along (as you showed your skills during the normal mode) and fight alongside you for mobs.
As a fan of Turkish lore and culture(a big aspect on what Gyr Abania is based on) I'd love to see these areas explored now that the nation is free. I think it would lead to some cool ideas from the dev team especially with dungeon's like Swallow's Compass and the Ghimlyt Dark under their belts. I understand if the devs don't see this for whatever reason but I think it would be great resources to pool from if making ideas for the future of ShB for a revisiting.