For those of you anxiously awaiting your chance to exact revenge on Arthas for his crimes, you'll be able to obtain some fairly snazzy armor in the process, and Blizzard released a sneak peek preview of a few of the sets awaiting players in Icecrown Citadel: The Frozen Throne.

This new armor is the next tier up -- now at tier 10 -- and will provide players with 2- and- 4-piece set bonuses, with 5 pieces total in the set. Check them out below!

Quote from: Zarhym (Source)

As the threats within Icecrown Citadel continue to take shape, so do the rewards for the brave souls who seek to face them. We’ve just released a first look at some of the new tier-10 armor sets that will be available to intrepid adventurers upon the release of the Icecrown Citadel raid dungeon. The preview contains all of the sets that we’ve completed so far, and you can click an image to see each set from different angles. We’ll add more classes’ sets as we continue to develop and polish them, so be sure to check back for updates.

http://www.worldofwarcraft.com/info/underdev/3p3/tier10sneak.html