Kel'thuzad in Legion? So we've seen Blizzard bringing back characters that were kind of on hiatus so I was thinking Kel'thuzad might have something to do with the new Lich King. He had a pretty interesting relationship with both Ner'zul and Arthas and even Darion. He was also responsible for summoning Archimonde in WC3 which reminds me that the book of Medivh might still be in his possession. I'd love to see him help us stop the invasion.