One of the changes between The Burning Crusade
and Wrath of the Lich King
that I'm noticing most strongly now that I've cleared most of the solo and small group quests in Northrend (I needed money for crafting) is how accessible major lore moments are, and how much lore is now being created
in the massively multiplayer game, rather than simply being resurrected for it. Yes, we're seeing the machinations of the Lich King, that fusion of Arthas and Ner'zhul we saw created at the end of Warcraft III
, but we're also seeing in the Storm Peaks and Sholozar a great deal of new information about the Titans, who they were and what they were up to on Azeroth, and their contrasting opposites the Old Gods. The Yogg-Saron
storyline has fingers in Dragonblight, Grizzly Hills, Storm Peaks, and Icecrown at the very least and the quests that reveal the conflict not merely between this vast, formless entity and the Titans but even against the Lich King's forces in Icecrown are surprisingly deep and complex for ones you can do solo or in a group of three or four people.