The Skill Tree releases in our upcoming May 16th patch, and while the patch notes won't arrive until Monday you can check out a pre-release Q & A session with Lead Designer Paul Inouye and Design Consultant Chris Lowrey over in our Command Chair sub-forum.
The Q & A covers a number of the more common questions we've received regarding the new Skill Tree since the last PTS, so if you're interested in some straight-to-the-point questions covering topics such as the goals of the Skill Tree, its structure and economy, its impact on balance, and our approach to balance as a whole in coming patches, head over and check it out.