If you're interested in WoW design and discussion, but don't yet follow twitter, you might want to reconsider. A lot of the developers are regularly active there. For example, yesterday our own Adam Holisky had a nice little chat with Ghostcrawler, Bashiok, and some other folks about WoW's talent design, and wondering if there was another big overhaul being considered for the next major expansion. The answer, bluntly, is no. Blizzard seems content with the current system.
Player Mihaly Ducz replied that three choices every fifteen levels feels kind of thin, but I have to admit that I kind of agree with Bashiok's response on that one: there are already plenty of spells and abilities in the game; I am perfectly content to have fewer of them, or at least more passive options so I don't have to agonize over how to redo my bars again. How about you? Are you content with the current talent system? What might you like to see changed or modified in the future?