Zarhym's latest post in official forum revealed that the Crimson Hall was unlocked today! Players now be more closer to Lich King!
Corridors carved within an echo of suffering, the Crimson Hall contains the leaders of the San'layn, undead blood elves who oversee the Scourge's operations throughout Azeroth. The blood-princes Valanar, Keleseth, and Taldaram were raised into undeath by the Lich King to avenge themselves while protecting their blood-queen, Lana'thel. Skilled followers of the Ashen Verdict are now called to end the misery forged in and flowing outward from this cruel hall of Icecrown Citadel.