Mists of Pandaria reviewed: A solid expansion, but experienced players may be unmoved (games.on.net)

Reviewing an MMO expansion is sort of like giving a game a physical. It’s an opportunity to look at the new content that the expansion has added to the game (which, for a World of Warcraft expansion, is never a small amount), but also to look at the state of the MMO as a whole. Because, as more and more content is added to the same product, there’s always a risk that a game might lose its direction or momentum, or make older content completely irrelevant. A really good expansion will find a way to not only make advancement fun, but create a new experience for players who want to go back to their roots. -