Star Wars: Darth Maul: Son of DathomirEdit
The Darth Maul arc that was for season 6 was adapted in to a 4-part mini comic series book titled the comic series as Star Wars: Darth Maul: Son of Dathomir.
Crystal Crisis on UtapauEdit
On September 26, 2014 Lucasfilm released a unfinished 4-part episode story arc in story reel form on starwars.com detailing 4 episodes: "A Death on Utapau", "In Search of Crystal", "Crystal Crisis" and "The Big Bang" that were for season 6.
A eight multi-part episode that was supposed to be part of season 7 focused around Asajj Ventress and Vos called Dark Disciple is adapted into a novel releasing July 4, 2015. The episodes were to be titled "Lethal Alliance," "The Mission," "Conspirators," "Dark Disciple," "Saving Vos Part I," "Saving Vos Part II," "Traitor," and "The Path."
Bad Batch was a 4 multi-part episode story arc for season 7 detaling 4 unfinished episodes: The Bad Batch, A Distant Echo, On the Wings of Kerredaks and Unfinished Business that was adapted into story reel form and screened at Star Wars Celebration. The arc was later uploaded to starwars.com on April 29, 2015.
After Ahsoka appeard in Star Wars Rebels Dave Filoni confirmed that he still had 12 episodes focusing on Ahsoka left to be produced.
Siege of MandaloreEdit
One story arc involving Ahsoka on Mandalore was first hinted at by Season 7 concept art posted by Dave Filoni on StarWars.com, showing Ahsoka appointing Bo-Katan Kryze as provisional leader (presumably) of Mandalore. Later on, in the Season 2 premiere of Star Wars Rebels, returning character Captain Rex mentions that he served alongside Tano "from the Battle of Christophsis to the Siege of Mandalore." There is no confirmation on whether or not this story will be released. This was to be the supposed series finale of The Clone Wars.
Cad Bane/Boba Fett arcEdit
A 4-part episode arc written originally for season 5 was focusing on the fates of Cad Bane and Boba Fett and at Star Wars Celebration 2015 they went in more detail with the arc showing of some concept art and a story reel clip with a encounter with some Tuskan Raiders.
One of them was a 4-part arc written for Season 8 in which Rex would have been "stuck" with R2-D2 as a result of rivalries between servicemen.
A story arc that takes place after Bad Batch arc on Kashyyk where The Bad Batch along with Echo who joined the bad batch works with Wookiees.