Being that the Shadowlands functions as the afterlife of the entire Warcraft universe, and the fact over the course of so many expansions we've encounter different characters (from relatively small functions to large character roles), which one of these characters would you like to see show up?
Hell we've seen Mankrik's wife show up and she's a badass now in Maldraxxus.
Personally, I would love to see this guy again:
His suffering ended and I hope he found peace somewhere in this afterlife. There is likely no chance we will encounter his soul in the Shadowlands, as I know he didn't technically die but just turn into a Withered, but we killed a lot of Withered in "Legion" so he had to have been one of them, right?
Where men cried in "Legion". Or just lil' bitches like me.