Everything here is confirmed: it comes from Blizzard's hotfix list, posted in the forum on 6 November and as an article in its final form on 7 November.
Classes
- Warlock: Voidwalkers gain about 40 base health at every level. Soul Siphon no longer makes Wrack increase its own damage.
- Druid: Bloom now heals its target correctly. The tooltips of Bear Form, Ravage and Swiftmend were corrected without changing what the abilities do.
- Mage: Arcane Blast now lasts its full 18 seconds, and characters no longer learn the "Research" spell by mistake.
- Rogue and warrior: only tooltips. Shank shows its rank and the combo points it gives with Boot Knife; Reckless Swings now says that it activates Gore Drinker.
- Legacy and interface: the Legacy talent The Quick and the Dead sometimes did not work. The Cooldown Manager now shows crowd-control durations correctly under diminishing returns.
- Races: Shadowmelded night elf druids no longer get Ravage and Pounce for free, and the orc racial Command no longer over-buffs some warlock pet abilities.
Dungeons and the world
Zaetar's Spirit appears again after Princess Theradras in Maraudon. Creatures in Blackmaw Hold and the Drowned City no longer drop combat on their own, and the Drowned City's entrance portal now actually takes you inside. Many respawn timers moved: Yarrog Baneshadow in Durotar comes back faster, the murlocs of Dustwallow Marsh and the troggs of Grol'bolar Quarry slower. Quest drops in the Riverglades are now shared within a party, and the escort "The Sleeper Has Awakened" is easier because Kerlonian falls asleep less often.
Professions and items
The Leatherworking Tanning Rack now needs skill 125 instead of 140. Zephras Isle's trade supply vendors sell apprentice profession bags. Searing Dagger only triggers from damaging spells.
What this changes here
The talent calculator shows trees, not pet or tooltip values, so nothing in it moves with this list. The bigger class changes are coming as tuning on 10 November.