Originally Posted by
Yrusama
First off, do we really know if Louisoix is dead? Second, they never recovered a body, so even if he is dead he wouldn't have a known grave to turn over in. Third, why do they have to be related to Louisoix? Perhaps their grandfather is a yet unknown character. I'm willing to bet they're from Sharlayan, or maybe a distant land with strong ties to Eorzea. Maybe through them we'll finally get a Lore Library!
I also wonder how human they are (by that I mean "of the 5 races"). True, silver hair is even available to player characters, but in their case it looks like a sign that they aren't normal. Japanese culture tends to mark demons or otherworldly beings with silver hair. I feel they are on our side, but this notion has me thinking they transcend the rest of us in some way beyond their abundant knowledge.
They remind me a little of Palom and Porom, although Alphinaud is not nearly as cocky as Palom and Alisae is not nice enough to be Porom. They also look like Neve Campbell (which isn't relevant, I know, but I like her).