I've been writing two articles about World of Warcraft changes recently. One is 2.3 and You, and focuses on the changes that can be seen currently on the Player Test Realm (PTR) servers. The other is a collection of information about the upcoming expansion, Wrath of the Lich King, called Wrath of the Lich King and You.
2.3 is a huge patch, and tracking the changes it will bring to World of Warcraft hasn't been easy. It will involve dozens of class-specific changes, tradeskill changes, PVP and PVE changes as well as an entire new raid dungeon for 10 players.
Wrath of the Lich King, on the other hand is hard to nail down. Developers and CMs on the World of Warcraft message boards sometimes leak a tidbit, but it's not always clear when they're talking about 2.3 and when they're talking about Lich King. For example, the reduction or elimination of the so-called "deadzone" would be a major change for the hunter class, but it's looking increasingly likely that that change is being aimed at the expansion, where everyone assumed at first that it was destined for 2.3.
I'll keep trying to stay on top of these changes, and my articles will be updated as real work and homelife permit.