I’ve always felt Sya was an interesting character that ended up being relatively squandered. She’s an aid worker, so it’d make sense for her to follow the plot to help those in need during times of crisis. Even if she’s just a background NPC with incidental dialogue, I think it’d add a dash of realism to the living story if we saw snippets of mainland Tyria reacting to problems elsewhere in the world.
Alternatively, give her a new role in LA. Make her a manager of her relief organization and have dialogue concerning the shipment of supplies to places all over the world that need them. And then maybe seeing the field workers of said organization dropped into maps to add an extra touch?
I just think she deserves more than being chained to a rock in Lions arch for all eternity lol.