An article by USA Today sheds new light on one of the two arcs for Star Wars: The Clone Wars "bonus content" aka episodes that were supposed to air in "Season 6", but were not with the series canceled. It is still unknown how these episodes will be shown (will they air on Disney XD? Or just be released on DVD?). More so from the tone of the article it sounds as if there's more to the "Bonus Content" then a mere two arcs.
What is known is Supervising Director Dave Filoni now overseeing the final touches in completing these "lost episodes". In the article from USA Today we also learn that one of the "bonus content" arcs will deal with Jedi Master Plo Koon (James Arnold Taylor) and several Clone Troopers on sandstorm ridden world a coming upon wrecked starship that contains a lightsaber. Here's the clip:
As for who was the owner of the lightsaber? None other than Sifo-Dyas, the Jedi Master who commissioned the Clone Army to begin with. But as we know the plan was twisted and molded into the overall scheme of Darth Sidious. Here's what Filoni has to say about the arc: "The Jedi have been fighting a war with an army that was commissioned by one of their own, Jedi Master Sifo-Dyas," he then adds. "But who was Sifo-Dyas, and what happened to him? The dark lord of the Sith has woven an intricate web to ensnare the Jedi, but it is not full-proof and sometimes a small clue, and a bit of chance, can lead to the unraveling of the best-laid plans."
When more word on the "Bonus Content" is revealed, you can be sure we'll let you know.