Right, and myself personally, when I think of the Shadowlands or anything regarding them, I cannot help but think of the Arakkoa due to their own connection to them as being one of, if not, THE only races to be able to enter and leave them on a whim.
Plus, ActiBlizz have been using their rigs for further items such as the Witches of Drustvar and the Zanda Boomkin forms with additional animations each, so the potential for them to appear IS there.