Catch your breath guys 
http://www.worldofraids.com/#6134
What to expect from the Expansion :
*It is going to Northrend! With level 80 and new abilities! If some
Objects are achieved, you can create a new Character. The Death
Knight. He starts straight in High Level Area.
*In PVP there will be finally be the long-ago announced siege
weapons available and there will be destroyable buildings, plus a
new battleground
*The Deathknight will be a kind of Damage Dealer and at the same
time a Tank with so far non existant new abilities. He will be
playable by Alliance and Horde, but it will be just certain Races
who will have the possibility to create a Death Knight. He is the
first Hero class and other will probably come in the following
Expansions.
More summaries of the of the FAQs:
* New possibilities of designing your Character.
* You will fight against the Lich King Arthas!
* Leveling from 70 to 80 will take as much time as leveling from 60
to 70.
* Howling Fjord will be the first area you will arrive to.
Afterwards there will be areas following like Grizzly Hills and
Dragonblight.
* The first Dungeon will be Utgarde Keep. You will be able to enter
it at level 70 and it will be a 5-man Instance. 25er Dungeons will
still be existant, just as well as Heroic Instances.
* New Profession: Inscription Enduring amplification of spells
and abilities.
* There will be a Cinematic Intro.
* Northrend will be about as big as Outlands.
Other contents like screenshots could sadly not be saved since the
page went offline straight.
The complete FAQ with other Informations in English can be read at
wowszene.de
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Evidence of Worgen Race?
He just noticed that the Worgen have a bunch of new animations.
They can now kneel, talk, drown, hold guns and bows, and even ride
mounts. With the talk of new expansions and new instances, the
Greymane Wall could be opened to access an instance or city,
revealing a crumbled and isolated kingdom with a worgen plague so
bad even the citizens and the king himself are affected.
Before the new Alliance race for the Burning Crusade was announced
there was rumors that the inhabitants of Gilneas have turned into
Worgen and that Worgen would be the new race and Gilneas their
homeland.
The Greymane Wall could be the entrance to Gilneas, but it is not
currently a part of the physical geography of the gameworld. On the
other side of the Greymane Wall there is only a small, flat area,
bordered by the ocean.
