The next expansion is and
will be about the Burning Legion. Currently, the only info I know and can give, is the list of new zones, and their level ranges.
K'aresh - 96 to 99
Argus Meadowlands - 97 to 100
Mac'Aree - 99 to 100
Maw of Oblivion - 100+
The Burning Citadel - 100+++
Thus, taking us finally to the awaited cap of level 100. Thanks for your time, and have a great one!
-------------------------------------------------------------------------------------------------------------------------------------------------
Found this in the list aswell.
Wolfenhold - 1 to 10
Xorothian Plains - 10 to 20
The Green Lands - 88 to 91
The Dying Paradise - 91 to 94
The Emerald Nightmare - 94 to 97
The Eye of Ysera - 97 to 100
Deephome - 88 to 91
Skywall - 91 to 94
The Abyssal Maw - 94 to 97
The Firelands - 97 to 100
Legion Set
K'aresh - 96 to 99
Argus Meadowlands - 97 to 100
Mac'Aree - 99 to 100
Maw of Oblivion - 100+
The Burning Citadel - 100+++
Originally a blue post back in '08