Many people have their various rumors about the new changes. Death knight is coming early? Obviously, it is a pure rumor. The release of the Wrath of the Lich King and the death knights has long been suspense to players. Forget of this, we should do concentrate on the leveling and get prepared for the attack and operation. There are some points to bear in mind.
You need a level more than 55 to create a Death Knight. The Death Knight is the first hero class in World of Warcraft. At a high, undetermined level, a player will be privileged to create a Death Knight. This is a second and separate character from your original character. The Death Knight starts at a high level somewhere around level 60 or level70 with multiple spells and abilities ready to use. Within this quest chain the character learns to master the power of the Death Knight and learns to use this new power for their will. Blizzard is currently exploring various options as to how the Death Knight will play and the types of abilities at its disposal, and they will reveal more information about this new class as they get further along in development.
There is no restriction to how many Death Knights you can create, and you can create a new character on any realm, as any other class.
The Death Knight depicted in the Wrath of the Lich King trailer has to a great extent stimulated our players' great interest, though it is not the final fixed one. The eyes revealed could easily be sinister Death Knight Eyes. Allegedly, a post on this subject was nuked by the CMs in the official forums earlier today. However, even if this is what the post was about, speculating on unreleased content is explicitly forbidden by the forum terms of service, so the post would have been removed whether or not it was accurate. Thus this is still solidly speculative.
Aside from what they said, there's also the fact that you are now still in waiting for the release of the death knight. Therefore, what we should do now is sticking to Wow power leveling and always prepared for the Death Knights.