Currently there's a version of Remuria available so Fontaine has it's own Enkanomiya/Chasm Underground area. Back when Enkanomiya released more fanfare was given to the Second Lantern Rite because the Jade Chamber was finally returning. But the average player would definitely be made aware of this new area by the following patch where we received the Three Realms Gateway Offering event. To even unlock this event you needed to first complete the entire Enkanomiya World Quest Series from the early ones just to open the path to it and all the way to unlocking the three dettached islands at its outer limits. The event then provided additional details to the ones we'd have seen from the World Quests, details that are still used in theories today. The Chasm was no different. We needed to do a hefty portion of the Chasm Delvers World Quest Series just to be able to get to the point where Dainsleif's quest took place. While the World Quest brought up certain uncomfortable details about Teyvat's society and also introduced us to the Dark Mud mechanic it would be the concurrent Dainsleif quest that gave us the more important details that again are used today.
Why am I bringing this up? The Remuria we visited so far isn't real. It's frozen memories of the real Remuria stored in the Phobos as a magical musical score. But there is a real Remuria that was destroyed and sunken underneath Petrichor. So just like with Enkanomiya and the Chasm before it, it's likely in v4.7 we'll have an event or quest to further develop the story and give us more important details. The story we've gotten so far is pretty much a rehash of the original ending to Remuria which we read in The History of the Decline and Fall of Remuria. But we didn't get any details on how it started, where Remus actually got the idea for the Ichor to begin with which I'd already predicted involves Neuvillette's original self back when he worked for Nibelung. So if we combine what we already know miHoYo's done with both previous sub-areas I think we can piece together the story we'll get.
I don't think we'd get an event to cover that story so I think we'll be getting Dainsleif for it. And that goes into a part of my Witness Loophole Theory. We're likely not going to see Furina's story for a while. With the Weekly Boss already out it would be a waste to have it now without that payoff. Instead we'll get a Dainsleif quest about Neuvillette and the dragons under Nibelung's command. This will be the Normandy reference I brought up a long time ago. I'm not really sure how exactly the story will go but Nibelung himself is a Nordic reference and with his resistance to the new order of Celestia it could be explained that he and his forces began occupying several regions with his generals - like Neuvillette - acting as regional leader of Fontaine and nearby Chenyu Vale.
As such and with regards to how each Dainsleif quest to date has had some link to Liyue I think we'll be starting this next one in Chenyu Vale. Then just seeing how most of these quests also connect Liyue to another region this will be Fontaine's turn. The overarching story will be about the battle between Neuvillette's original form and Zhongli, his desparate move to flood Bishui River and Zhongli's reaction to it by lifting Fontaine onto its current plateau. On Dainsleif's end the story would more focus on Nibelung which I had suggested inspired Khaenri'ah to oppose the Heavenly Principles. His search brings him to Chenyu Vale but since it was only a territory of the Hydro Dragon he and the Traveler will delve deeper and find their way to Remuria, the real one. That's where I bring back Enkanomiya and the Three Realms Gateway Offering. Just like Caribert, the event gave us a totally separate event-only version of Enkanomiya. (it was so weird having two pages of the same map for that patch) So in this new Dainsleif quest we'll get either a mixed Chenyu Vale/Remuria map like Caribert which combined the Sumeru and Chasm maps or a wholly separate real Remuria map that'll be a separate Sea of Bygone Eras map page.
That'd be the setup. It's a Dainsleif quest for v4.7 that'll start in Chenyu Vale and focus on Dainsleif's investigation into Nibelung's role in influencing Khaenri'ah's hatred for the gods and belief in the Abyss. As the quest goes on we'll get details related to the god that attempted to flood Bishui River in her fight against Morax which she ultimately lost. It will be discovered that Morax had lifted the Fontaine region up onto its current day plateau in order to separate the Hydro Dragon from its native source of water. Further investigation will bring them to an old passage that connects Chenyu Vale to Remuria back when the land of Remuria was above water. It is likely the mysterious Sinner will also have some role in this quest as it would represent the Abyss that Nibelung used and have a stake in any information Dainsleif and the Traveler might uncover.
I suppose we'll find out soon enough! Thanks for coming to my TED Talk!
PS: I created a complementary channel to Hive Gaming!
This topic blended things. I didn't want to put it into Hive Gaming Theories because it's more just a quick prediction for what we'll be getting in a few short weeks rather than some deepest lore about the story itself. But I hope you guys can see what kind of topics can come up in games as complex as Genshin and that it can be really fun to talk about. That's what Hive Gaming Theories is about so if that's something that interests you please stop by! I just got up a new topic about the character Yae Miko.
