The new glyph interface is active, although a lot of new glyphs are still under development:
Cataclysm Glyph UI
Worgen can now customise both their Worgen and Human forms:
Worgen customisation screen - Worgen form
Worgen customisation screen - Human form
The Dark Phoenix mount is acquired through a guild achievement that requires completion of the first three raid achievements:
Dark Phoenix a guild achievement
A few tidbits:
- The vanilla raid instance Zul'Gurub is being removed (Source).
- Possibly due to popular demand or simply just efficient development, the heroic versions of Shadowfang Keep and Deadmines will now be released with the expansion, rather than in a later patch (Source).
- The patch notes have been updated for the newest beta build (12857: Source), and the level cap has been raised to 85 (Source), with Uldum and Twilight Highlands now accessible for testing.
A lot more has happened over the last couple of months. For some decent beta footage, check out the videos from TotalHalibut, aka Total Biscuit of Cynical Brit fame. He recently released one of a Stonecore dungeon run, and with the level cap now 85, expect end-game instance videos some time before the end of the beta:
Totalhobnob Stonecore run
Gaiwyn of Proudmoore