CVG seems to have released their interview with Jeff Kaplan from the pages of PCZone# 120. This interview reveals a few things about World of Warcraft: Wrath of the Lich King.
Kaplan: We’re giving all players going into the expansion interaction with Arthas. We were too protective of Illidan [the arch villain in The Burning Crusade] making sure we didn’t waste the opportunity, so now you’re interacting with him straight away.
You’re talking to him, having these moments with him, so you don’t have to be a raider to see him. We’re also having a Caverns of Time mission – The Culling from Warcraft III – so that you can go back and play alongside Arthas when he was shiny and good, when you’re burning Stratholme.