Recently Blizzard opened up a whole new section of the forums dedicated to their new expansion pack: Wrath of the Lich King.

As such, most of the information we know has already been compiled and stickied. One bit of new information gleamed from the various blue posts is that we can expect lots of new armor graphics and, hopefully, no more rehashing of old sets like we saw in BC:

Yes, some of the earlier armor models in The Burning Crusade were modified versions of tier 1 and 2 armor, but tiers 4, 5, and 6 are all brand new armor models and stand out as a strong accomplishment for the players who have them.

We have previously stated that we may re-use the tier 3 art models for the new version of Naxxramas. This was mainly because the armor models really fit the dungeon they were coming from and look really awesome.

Will we modify other tiers of armor and use them in Wrath of the Lich King? It's possible, but I am also confident that new armor sets will be made ... and I will be drooling over them as usual. :)