New Expansion?

[Arbalest]

I don't understand how that equates to a hint of a new expansion. No expansion thus far has been linked to another, and reaching out for "this one thing that's unused might be used for the expansion!" doesn't really hold up when there's dozens of things just like this spread throughout the entire game. Boat docks in Norg, Adoulin, and behind the Tenshodo, many various tunnels and caves in various zones that lead towards the edge of the map like they're connecting to another zone, then there's an abrupt poorly textured wall, Ebon Panels, etc.

For what it's worth, I hope there's more expansions in the works.

By chance, what zones might you be referring to? I'm very curious; I love conspiracy fuel like this.