So they said they've planned ahead enough that they're starting to plant the seeds for the next xpac. Think you've spotted one? The first one that pops into my mind is probably Kanrethad. You know, since he's not technically dead after the whole Warlock deal. Since he's banished and the next xpac is likely to be on a burning legion world he or one of the other members of the council of the black harvest are more than likely going to come up.