World of Raids discovered a hidden link that reveals some new information about Wrath of the Lich King, particularly the Utgarde Keep dungeon.

"Utgarde’s design ties closely into the creation of Howling Fjord as a whole. Less high-concept than the otherworldly and wildly diverse regions of Outland, we want the zones in Northrend to follow a geographic theme that’s more consistent with the familiar geography of Azeroth. Many of Northrend’s regions originally appeared in Warcraft III – such as Howling Fjord, one of the two starting areas and also where Utgarde Keep is prominently located. Howling Fjord’s Azerothian feel stands in sharp contrast to the stark, alien beauty of Hellfire Peninsula, and this should help players establish an immediate connection to the expansion’s new environments."