In the wake of SK-Gaming's world-first kill of the Sunwell Plateau boss M'uru, World of Raids has checked out the data files and found some other items that they're pretty sure are on M'uru's loot table. You can also see information on these items, and other new items as they are discovered, on Wowhead's new additions page, a handy resource. Pictured is the one-handed sword Muramasa, which looks pretty bad-ass if you ask me.
For this and the rest of the items, I've made a gallery containing the tooltips with all the stats, and the item models when appropriate. However, M'uru's loot table seems to consist mostly of rings and trinkets, so there's not much to show for those besides the tooltips themselves. I don't mind -- I'll drool just as much over stats as over an item's appearance. Click on, fellow stat geeks!