The Blizzard downloader is already starting a partial download of the new patch 2.0.1. The coming patch will include the new talents, the new honor system and many more features of the Burning Crusade Expansion.
Do not get Your hopes up, since it is only a partial download in advance as confirmed by blue.
In my eyes the new talents will just make my poor Rogue feel incomplete since the new builds with 41 point talents will basically require Level 70 and thus will always miss some important Talents. Then also the nerf to the weaponskills which will make it quite useless.
Other changes are simply great, especially no dishonorable kills, and no more honor decay.