So I thought of a weird probably-not-coincidence. The M43, that memory-mimicking shapeshifter that the MC hunted with Nico, is implied to have some connection to Syla. Similar faces, similar "hair", they both have memory powers, and they're both afraid of lightning. The M43 also looks a lot like a monster from Greek myth named Scylla. Scylla was a sea nymph who got cursed and her lower body turned into a mass of ravenous dog heads. The M43 has a humanoid upper body and a lower body of jawed tentacles, with the jaws looking rather canine. WeirdWorld likes to name monsters after myths, so it's probably intentional. What makes it weird is that the C in "Scylla" is silent. Meaning that it's pronounced nearly the same way you'd pronounce "Syla".
I don't have a theory about this, there's nothing I can really tie to a broader prediction. But it's strange, right? Definitely feels like there's something there, but I can't think of what importance it would have. Maybe in an update or two there will be something more and I'll stand up and shout "That's what that was about!" in revelation.
Some more context and my own theories:
Scylla comes from othe greek word "Σκύλλα", The greek pronounciation is "Skeelah", and it means "female dog".
The word in english is translated as "Bitch" and it carries both the literal and the derogatory meaning.
For some reason, the english pronounciation drops the C, I don't know why and it doesn't really make sense to me other than phonetics, but it is what it is.
If I had to guess, I'd say that the M43 being called Scylla is a likely scenario.
Syla on the other hand.. she probably comes from another fairytale. I think the similarity with the pronounciation of "Scylla" is just a coincidence, and given that she likes shortened nicknames, her real name is probably not Syla, but something longer which can be shortened to "Syla", like let's say Priscilla or something.
Every Chosen is named after a mythological entity without any distortions and these names are prominent enough that a google search will yield the relevant results without much hassle. This doesn't apply to Syla's case and that's why I susect there is more to it.
1. Reasons why Syla and the M43 look alike:
I was probably the first to voice this similarity, and I noticed it back when WW posted the preview picture of that monster. At that point it made some sense but nowadays I think it's not that simple.
Those two probably look alike because of WW using the same base model when drawing. Syla is revealed to have Memory powers and in her combat form she wears something similar to MC's Stone Armor.
Perhaps Sea-Human women have certain similarities and the M43 is a Variant made from a monsterfied Sea-human spawn, but I don't think it's anything more than that,
A bit of trivia: I also think that Syla hides more than her eyes with her hair. She probably has gills as this is teased in one of the flashbacks (don't remember if it's the scene with Nyx or Henri)
2. Reasons why Syla and the M43 are scared of Lightning:
Since 0.97 I started thinking about this in a different light. I theorized that Syla is an alt-human due to the "lightning" memory sequence, although at this point I couldn't tell if she was a Sea-human or not. In 0.98 we learned that MC has a Sea-human heritage, which means that Syla is a Sea-human.
M43 is shown to have affinity for Water.
Syla is a Sea-human and according to the flashbacks, the race has affinity for Water.
MC is the son of Syla, so a half Sea-human who should have inherited some affinity for Water.
Water conducts Electricity (Lightning), a fact that is used by various games as a "weakness" of shorts. An obvious example is pokemon, where Electric attacks are supereffective against Water type, but it's also present in other games, where Lightning attacks deal more damage to water elementals etc.
So I think that the reason why all these individuals have some issue with Lightning/Electricity, is their affinity for water.
For MC in particular, I suspect that the conductivity along with his shapeshifting powers, will allow him to take advantage of this. Same can't be said for the others as their shapeshifting abilities seem different in scope.