Model grabs from the 2.1 PTR patch (Updated with Tier 6!)

MMO-Champion has already started cracking open the Public Test Realm patch with a model viewer, and he's found some pretty cool stuff, including new weapons models (some of which still look unfinished), what appear to be bosses from the Black Temple (or possibly new models from the other opened areas), and even Illidan and the Druid epic flight form. If you're worried about spoilers, don't-- I'm going out of my way here to keep them from you, but definitely don't click on any of those links, because there are definitely spoilers ahoy.

And don't click on the "Continue reading" link below either, because I've put a few of the more pertinent snaps after the jump, along with a little healthy speculation about where and what they're for. MMO-Champion promises more, so check over there to see what else he's put up.

First things first, the double blade at the top might be a new player weapon-- or it might be one of Illidan's famous weapons. It does not, however, have a panda on it, so it's still anyone's guess.

This image looks to be a naga with a harder shell on it. Most likely, since Lady Vashj is one of Illidan's followers, this will be a water-based boss in the Black Temple.

And this three headed sphere/floating thing is almost guaranteed to be a Black Temple boss. This is the saddest face on the circle-- the other two show anger and... some other emotion that I'm not sure about.

This, as someone on MMO-Champion has pointed out, looks like a mix between an Arrakoa and a Troll. This could also be a Black Temple boss, but my guess is that it will be part of Skettis, the Arrakoa capital that will have extra quests and content associated with it.

And speaking of birds, here's the real epic druid flight form. This one is the Tauren version-- the Night Elf version is a little sleeker and more purple.

Finally, the demon hunter turned demon, the Lord of Outland himself, Illidan. This is, of course, his demon form-- he also has a normal elven form (I'm a little disappointed that you can see his eyes in both). No matter how these forms are used, I'm sure they'll be killing players many, many times in the future.

Update: Here you go, guys: Tier 6 sets: Warrior, Hunter, Rogue, Priest, Shaman, Warlock (check those wings!), Paladin.