Shadowmourne Questline Extra Rewards

If you read this site regularly, and I'm sure that you do, you probably remember the Icecrown Citadel quests introduced with Patch 3.3.3. These quests have finally appeared on live servers and the rewards from this questline are actually Shadowmourne extra rewards.

It looks like Blizzard decided to add a couple of flavor items to let you attract the attention even more! When you kill the Lich King with a player wearing Shadowmourne in the raid, you will get an additional item - Unsealed Chest. After bringing the chest to Darion he will open it up and let you bring the items back to their respective owners to get your rewards :

Reins of the Crimson Deathcharger - A brand new mount that looks like the Death Knight's class mount.
Muradin's Favor - A 10-minute Frost Dwarf transformation.
Jaina's Locket - A portal to Dalaran on a 1-hour cooldown, you finally have your own pocket mage!
Tabard of the Lightbringer - A tabard with a very shiny on-use effect.
Sylvanas' Music Box - A music box that plays Lament of the Highborne.

I do realize that a couple of guilds with Shadowmourne already killed the Lich King in Patch 3.3.3, I will assume that the quest was bugged and only recently fixed. Thanks to Heist from EU-Genjuros for this info!

Fun fact, even the mount isn't bound on pickup. Time to buy all the Primordial Saronite at the AH.