- On the Sunwell, it seems the Burning Legion is using the Mana Forges in Netherstorm to power the Sunwell and summon Kil'Jaeden. The instance will have 6-8 bosses, and Kil'Jaeden will not be fully summoned when you fight him (which is supposed to explain how 25 level 70s can drop him).
- Dalaran will have one or two instanced dungeons in it (!), and will not have Auction Houses. It will have portals, including maybe one to Shattrath.
- There's some good Death Knight info, including a new AoE spell called Death and Decay. Blood runes will be damage oriented, Unholy runes will be utility and DoTs, and Frost runes will be CC-ish abilities.
- Finally, Inscription will give players the ability to sell scrolls (is it just me, or did the developers clearly say at BlizzCon that inscribers wouldn't sell scrolls?), and they will only be able to update "core spells"-- Priest's Mind Control no, Hunter Freeze Traps yes. Get ready for a round of QQing about what "core spells" are.
Update: Changed Mind Control back to Mind Vision. And apparently it was just me who thought devs said no scrolls at BlizzCon.