The Star Wars: The Old Republic Website has an update from Georg "I'd Like to Buy A Vowel" Zoeller where the Principal Lead Combat Designer on BioWare's upcoming MMORPG explains how their advanced class system has evolved over the past few months based on gameplay testing and focus groups. He outlines the importance of a player's advanced class choice, how class abilities are gained, skill trees, and more.
I'm dumb enough to buy this for the IP, the Bioware name and the story content. I hope not many else do though, as I don't want Bioware to switch over to MMOs full time.