What does the level-90 boost consist of from Devon's blog

 Where will the expansion occur?

You can see the Map of Orc's world, Dreanor in the map above. The zones in this expansion have been constructed from scratch, as you're traveling back from World of Warcraft 's roots buy WoTLK Gold.

In a future patch, you'll be able explore Netherstorm However, this area will not be accessible until the time of launch.

 What does the level-90 boost consist of?

You can pick one account for each character that can be upgraded to 90 once you have the expansion. It is possible to upgrade them to level one, and you don't have to pick which character to upgrade instantly. According to Blizzard, "New and returning players will have the opportunity to brush up on the game before embarking on their respective faction's first zone, which is similar to the Death Knight starting experience in Wrath of the Lich King. You don't need to be concerned about starting from square one, Blizzard promis"a level-appropriate set of equipment (along with other aids)" which will be revealed later.

If you're worried about players entering 90 and not knowing what they can do to play in their class (or perhaps it's been a long time since the last time you took part), Blizzard says the recent Proving Grounds features "help players learn how to tank, heal, and deal with damage in dungeons in a group 'teaching' setting, which will ease any learning process and prepare players for battle as swiftly efficiently and efficiently as they can buy WoW WoTLK Classic Gold."