Some info on WoW Coming from the Bliz Invitational

Most of the shaman totems, Unleashed Rage, and Battle Shout are some of the buffs changed in WotLK to affect the whole raid instead of the party.

Dynamic Line of Sight will be introduced in WotLK PvP, for exemple a pillar might move up and down every 20 seconds, or we might have movable items. More info about Arenas in tomorrow's panel.

The attacker/target range mechanics are being re-evaluated it might be changed for Wrath of the Lich King to fix most of the existing bugs, including the ones affecting the attack range of Feral Druids.

Even if it looks like a lot of classes are being changed to make them "more hybrid", but developers still want to keep the classes as distinct as possible.

There is a plan to give player access to two talent specs to switch between them without having to respec all the time. More details in the future.

Windfury won't be a weapon enchant anymore and will be changed to a buff. You will be able to use it in bear form or with poison.