Hoth Bricks posted a leaked video of the third and final episode of The Yoda Chronicles up on their YouTube page. The episode isn't scheduled to air until later this year. Wookiepedia has the air date pegged for November 28, 2013 but cites no source for reference and no formal announcements have been made otherwise. The video is in glorious 240p quality low resolution, so your viewing enjoyment may be compromised.
Once an official air date is announced, we'll announce it here.