A minor heads up, it looks like the Slark's Hookblade of Skadi and PA's Hell's Glare are going to be in that new immortal chest with different names, The Barb of Skadi and Hell's Usher. If you have them, now may be a good time to offload them. There is also several mouse coursers offered by perfect world. CM, Chaos Knight, and Mirana. I'm betting there is going to be a ton of cosmetic items tied to Perfect World's 'Dota 2 Asia Championships'.
The Azure Constellation is actually going to come with a hud, which is cool.