Some interesting things got added for tailoring in the latest LK beta build. Tailoring is the first production profession I got to 375, and although I'm angry at the Primal Mooncloth set for having no stamina which causes me to die all the time, the profession still holds a special place in my heart.
Particularly interesting is A Guide to Northern Cloth Scavenging, which is a tailoring recipe that seems to give the tailor an increased chance to get cloth drops in Northrend. I'm not sure where it comes from, but I'll certainly be glad to get my hands on it.
The other additions came in the form of several sets. The Frostsavage items aren't really a set as of yet, in that they don't have a set bonus, but otherwise they're similar to BC's Imbued Netherweave set. Blue quality, BoE, level 80, relatively cheap mats, decent stats to fill in spots where you haven't found anything good from a quest. Eight pieces of Frostsavage are available.
Then there are three two-piece BoE epic sets, one for each of LK's cloth specialties: Spellweave, Ebonweave, and Moonshroud. These correspond fairly closely to BC's Spellcloth, Shadowcloth, and Primal Mooncloth, though the mats are slightly simplified (each requires two of a particular Eternal element, instead of one each of two different primals as the BC cloths do). Each of the sets consists of gloves and robe. The item level is 200, so as it stands they're of equal ilvl to Naxx-10 items.
As you might expect, the Spellweave set (gloves, robe) seems most appropriate for Mages, the Ebonweave set (gloves, robe) for Warlocks, and the Moonshroud set (gloves, robe) for healing Priests. I don't know enough about the other classes to comment, but the stats on Moonshroud make me a very happy priest indeed. I'm glad they added some stamina this time around.