WoW's second expansion confirmed

Earlier in the week, word got out that World of Warcraft: Wrath of the Lich King was going to be the next installment in the overlly popular World of Warcraft series. However, Blizzard hasn't confirmed it until now... Here's what Wired had to say on their blog about the title -

The playable demo consisted of one of the game's starting areas, the Howling Fjord. As its name implies, this verdant, ice-touched land is literally riven across the middle, and it's surrounded by cliffs on all sides. The look of the place is stark and brutal, and it's easily one of the most beautiful zones in the game (though, to be fair, I may just be enamored by its novelty). There a single instanced dungeon in the Blizzcon version of the zone: Utgard Keep, a citadel inhabited by a race of 13-foot Viking dudes called the Vrykul. I managed to coax some of the buddies into run the instance with me, but we only got as far as the first boss: a necromancer dude who hurled shadow bolts with wild abandon, summoned grips of skeletons, and froze unwary party members solid for 20 seconds at a time. Needless to say, he mercilessly pwned us.