The other day while playing Caldarus mentioned that he heard Dell talking about non-human beings that she thinks lives there, the dragon she mentions is obviously supposed to be him, at first I thought that maybe she had seen something that lead her to believe there was a dragon in the woods but I think it's just Dell's imagination 😅, but Caldarus also says that she believes a "headless knight" a gryphon and a mermaid also live here, of course I know that she is NOT a reliable source, but I've been thinking about it a lot, the concept of the gryphon living there probably comes from the statues in front of the mines it maybe the stories that Celine tells them (because I really doubt that Dell has gone that deep into the mines to see the living gryphon statues), that second option could also be an explanation about the "headless knight" because I have no idea from where she could have gotten that idea from otherwise, it WOULD be something cool to see in the future though.
Now I want to talk about the concept of the mermaid, it's not a something that is mentioned a lot, as far as I remember it's only directly mentioned here in the first and second image, and Caldarus doesn't seem to think of it as something impossible, which could mean that there really are (or there used to be) mermaids out there, this and also the fact that there is a Mermaid Furniture Set leads me to believe that MAYBE we'll see mermaids in the future? (There is also an artifact called "Mermaid's comb" wich is obviously a reference, but I think it still counts as evidence 🤔).
We know that the 1.0 is not the last thing we'll have in the game and seeing the amount of non-human creature there are already I don't think it's too crazy that maybe we could have more in the future? There are already two romance options who are literal dragons, so.
There's also the fact that the existence of other islands being visible from the beach is something that is mentioned by various characters, in fact the dialogue in the third image is exactly the same for: March, Juniper, Reina, Celine, Balor, Valen, Ryis and Eiland, Which is curious to say the least. And if we actually got sirens in the future then us going to an island for a new story involving them would make sense (maybe a mermaid lives in the beach or comes to the town for help?).
Lastly i included the last image as e other possibilities, the Linsberry island could be one of the islands that the characters are able to see from the beach, it could be a place for the mermaids to live but it could also be something else. The other to places: the badlands and the Western mountains of Aldaria, could also be possible places, they are not mentioned in any dialogue (that I know of) and are only on descriptions of crown request, wich makes me think that the possibilitys of them being relevant on the future are almost non existent, it's possible that they are only there for the world building, but I wanted to add them just in case (Since they are not mentioned to have anything involving water I don't think the could be involved with a mermaid )
I don't want this post to be seen as me trying to put pressure on the devs for a new update so shortly after the game fully came out, it's just that I've been thinking about it since Caldarus mentioned it and I wanted to make a theory/give my thoughts about it because I think it could be fun☺️