The Future Expansion; What is the possibility?

[Ceasaria]

New World and Meracydia are too big I think to be included in the story arc Hydaelyn/Zodiark, but sure it will be the next lands to visit for the further arc.
The interesting note is we are on the land that the allagan empire has conquered, the most powerful empire that the source has known (from what we were told) and yet, they have been defeated by people on Meracydia.
So, it's highly probably that incredible foes await us there (with one of the brood of Midgardsormr), and I speculate on an Egyptian theme there (like some beast in FFXIII : Lightning Return).

For our actual arc, the remaining places to visit are Old Sharlayan, Thavnair, Garlemald, West Othard, East Koshu at least.
Don't need another shard, or another continent to throw in 6.0 and 7.0.
We might see the Moon, but don't know how they will handle this.

[Morningstar1337]

It's probable that someone is going to come out on top in the power struggle that's happening in the capital sooner then later, and I think it's likely that they're going to issue a swift retaliatory strike against Eorzea and its allies after what the general populace of Garlemald perceived as a surgical strike against their rulership (Assuming they don't wise up and figure out Zenos was the real culprit).

Their research is also starting to go off into very dangerous territory that's making them an even bigger threat to everyone then before (Themselves included). The artificial primals involved in the Weapon project seem like something that could snowball into a potentially Calamity-inducing problem if Ascian foolery gets involved.

Let's not forget the Black Rose, or the Resonant.

So, it's highly probably that incredible foes await us there (with one of the brood of Midgardsormr), and I speculate on an Egyptian theme there (like some beast in FFXIII : Lightning Return).

I'm preety sure the beast in question is the Shabti, which incidentally is encountered a few times in Allagan areas such as Azys Lla.

[Mansion]

Let's not forget the Black Rose, or the Resonant.

That's been conveniently left out of the patches plots (at least for the Black Rose). Well, I imagine our actions did bring back some balance in the Ether on the Source, which would make Black Rose less efficient as it would thrive on overaspescted Light Ether, right? It's still deadly though. But with no one in charge of Garlemald, we can't say what is going to happen with it. I'm not even sure, do all people in Garlemald really know about Black Rose even existing? There was a weird secrecy about it.

The Resonant however has kind of been shut down in Stormblood in itself no? We killed the guy who was in charge of it, and I can only think of two people having it: Fordola (now in jail, and she kinda became nice) and Zenos (soon to be dead I guess). Honestly Zenos has already greatly outlived his relevance for me, I hope his plot is over in 5.3.

Then someone will propbably come out victorious of the civil war-like situation in Garlemald, but if I remember correctly the last time this situation happened it was almost a disaster for the Empire (I think I remember that from 4.4 ? when Solus and Varis are talking). So things could go for the worst this time around.