According to the official StarCraft II forums, Blizzard is going to enter of the world of official podcasting-- BlizzCast is set to take off sometime, we're told, around January 2008, which, I believe, makes this the first time Blizzard has ever guessed at a release date for one of their upcoming projects! Write it in the history books! All kidding aside, it should definitely be something to set your iTunes for-- there'll be interviews with Samwise Didier and Jeff Kaplan, and supposedly "a sweepstakes/giveaway and LOTS of SWAG." Swag, you say? Sounds enticing.
Of course, this will be an official podcast, so while it'll definitely be a good listen, it probably shouldn't replace that other Warcraft podcast in your diet. But hopefully, if Blizzard does it right, the podcast will be another outlet for them to share not only news and hints about upcoming content, but make several issues and questions clear for the player audience at large. Can't wait to hear what they come up with-- sounds like it'll be a fun addition to their website in the new year.