I havent played whfb that much so im not that deep into the lore. I know about Throgg but i think we wont be seeing him back with the new Troggoth king we recently got. I dont feel any need to see any of the old O&G characters back. I like Gordrakk, Gobsprakk and Skragrott. Dont like Kragnos but i guess i dont need to like all Destruction characters. I hope we get to see some good new Gitmob, Spiderfang and Bonesplitterz characters 4th edition.
I know its the undead thing to be uhm... undead but i would like to see some more new characters enter the main stage and battle Nagash for the throne.