This week, we have statistics and how they will work in Mists of Pandaria to talk about, thanks to our metaphorical friend Dr. Greg Street. (I've never met the man; I can't in good conscience call him my friend, although I have appreciated his work over the years.) These are some big changes to how stats work for every class. I don't write about every class, of course. If you don't wear plate, tank with a shield, and have Bladestorm or Titan's Grip in your talent trees, then someone else is going to have to explain what this all means for you.
One of the really big changes is the change to the Block mechanic. Currently, World of Warcraft operates on a single combat roll system, wherein an attack is made and either succeeds or fails based on factors like dodge, parry, block and outright chance to miss. In Mists, things will be very different.