In addition, I was looking at Klara’s face a bit more (not in a creepy way, please trust me)
But I was gonna make a theory saying that she might be Allister’s mom, but then I remembered he lost his parents in an accident, so that’s kinda debunked a bit.

Unless she could be his long missing mother and he didn’t know about it. After all, Klara and Avery weren’t present in the release of Sword and Shield. Or she could be his older sister/cousin? That or it could end up that they aren’t related at all.

But I’m still gonna speculate that they might be blood-related until either further information about the characters are released or when the DLC becomes available.