Well since pretty much everybody reads the exploits section and this isn't really a guide, I'm posting this here.
Today I noticed that the new pvp-stuff from wintergrasp that you can buy with wintergrasp mark of honors is pretty nice, so I bought the trinket, and also noticed that the trinket ( Flow of Knowledge - Item - World of Warcraft ) is disenchantable! Maybe the rest of the new stuff from wgrasp is also DEable?
Normally, no pvp-gear is ever disenchantable, so this is probably not intended by blizz and will probably get fixed soon. Maybe if you've got lots of marks lying that you're not planning on using, you could get some free gold from this.
Edit: Went and checked it out to be sure, the other trinket sold (melee) is also disenchantable however the boots and head are not.