Yeah, that's exactly what I'm hoping here. Especially since that's where Mamool Ja were introduced.
Treasures of Aht Urghan was my favorite expansion of FFXI and the last one I fully played through. It also came after the end of the Zilart and Altana x Promathia storylines that felt very close to FFXIV in that the Zilart were also an ancient and powerful race fighting against adventurers whose civilization's existence only came with their race's demise and Altana and Promathia were a good goddess of light and bad god of darkness respectively.
From what I remember after however many years, after finishing the main plot of the game (or at least the Shadowlord in the vanilla, ARR-equivalent), we got invited by Vana'diel's version of East Aldenard Trading Company to go to another continent and then a lot of plot happened that I generally remember as being generally better than the other expansions before it. ToAU gave us a whole bunch of brand new game modes like Assault where we got to attack the local beastman tribes trying to steal the mysterious thing Aht Urghan held to diminish their capacity for war or Besieged where apparently we had to defend the city from the attackers with hundreds of other players but I was on PS2 at the time so I would just target randomly, cast death scissors, and hope for the best in the sea of lag. I didn't get to play Salvage, but I know that's where the 6.1 dungeon and some of its enemies were copy-pasted from so the devs at least have already established a connection to that expansion.
I'm not keeping my hopes up for a whole host of brand new and exciting game modes after getting continuously disappointed in Diadem, Eureka, and Bozja, but I am excited for the story. Maybe my bar is low, but for at least 2-3 years I just want to relax and experience something new in a place that's new and not have to hear anything about Ancients, Ascians, Allagans, or Garleans in anything more than a passing mention about all of them being dead and done with.