Unexplored Locations (6.1 to 7.0 Thread) *Spoilers throughout 6.0 as well"

[Kaliesto]

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SOUTH OTHARD:
Nagxia - Bunlal, Dagluk, Castrum Viride (quite likely the Castrum has fallen along with the Empire)
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Dalmasca Superior - The Skatay Range, Nalbina Fortress, Estersand, Westersand, Royal City of Rabanastre
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Dalmasca Inferior - Lea Monde, Golmore Jungle, Greylic's Bend, Zeirchele River, Valnain
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Dalmasca Unknown Location - Revenia, Sal Ghidos, Neimrahava
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NORTH OTHARD:
The Arras Peninsula
The Ryakgyr Peninsula
The Nhaama Desert
The Fanged Crescent
The Dalvalan Grath
The Unpromised
Treasure Isles (somewhere in the Blindfrost)
Raen Petty Kingdoms
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ALDENARD & THE SURROUNDING ISLES:
Mazlaya
The Pearl
The Farreach
The West Shroud
Coerthas Lowlands
Coerthas Northern Highlands
Midlander & Hellsguard settlements somewhere in Abalathia's spine.
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IlSABARD:
Nhalmasque
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Corvos - The Corvos Narrow and the Anchorite at Corvos are mostly located in South Othard
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Republic of Landis (Formerly) - Mons Falconis, Mannatheihwo, Arnsbeirgs
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Cape Mete
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Bozja - Zetina's Grace, Martrvje

Much of this landmass despite Endwalker is still under clouds
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VYLBRAND:
O'Ghomoro
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THE GREAT CONTINENTS YET TO BE EXPLORED:
Meracydia
The New World
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THE NORTHERN EMPTY:
Aerslaent
Isle of Yorn
Nagyn
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KOSHU:
Hingashi - Bukyo, Daitenzan
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OTHER:
The Southern Isles (Home of the Lalafells - Location Unknown)
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UNKNOWN LOCATIONS ON THE MAP:
Floating Isles above Garlemald
Island south of Greylic's Bend covered in clouds
Isles situated in the Glass Ocean far east of Nagxia and south of Koshu
Isles North of Koshu
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Oceans & Seas of the World (This is just for reference, these places we have visited in one form or another and other places we yet to sail through):
Indigo Deep
Bay of Yanxia
Rhotano Sea
Sea of Jade
Sea of Ash
Sirensong Sea
The Bounty
The Glass Ocean
The BlindFrost
Bay of Dha'yuz
Bloodbrine Sea
The Drown
Strait of Merlthor
The Ruby Sea - Rasen Kaikyo

I was hoping to make this like a major thread for exploration theories going forward for the next few years as well.

If you all got information on possible hints toward the future feel free to share!

Edit as of 7/23//2023:

New Areas added thanks to poster feedback, and removed one because I forgot Onsal Hakair was in the game already.

To Do:

Figure out the missing 2 city states of the Fifth Astral Era.