Yes it is true World of Warcraft is releasing another expansion the date is not set yet but there are some cool new features and secrets that are coming with it. The first and new hero class Death Knight, the level gap will now be raised to 80 and new abilities and talents with that, A new profession "Inscription" which allows you to learn the craft of spell augmentation. All that and much more check out the link if you would like to read more about Wrath Of The Lich King.