The Jedi Path. I have yet to see any copies in a brick-and-mortar store yet, but The Jedi Path has been dominating the news cycle. There are interviews with Daniel Wallace at TheForce.Net, and Geekdad, plus a feature on Amazon.com – which is probably your best bet for getting a copy right now.
More on Heir anniversary edition. First, Del Rey’s Suvudu blog confirms that Timothy Zahn is working on the annotations, while Sue Rostoni has confirmed that they are “looking into some variations of a special cover.”