To me, it seems like the books found in DF from anywhere are hinting at things to come. Like the prophecy of Azshara returning or the world tree Elun’ahir with its protectors mostly likely being the Haranir. I’ve been thinking that what if the Arathi are from Avaloren but we haven’t met the rebel titan forged living there and maybe the lost green dragon, I forget her name, also lives there.