Star Wars: 9 Ideas For The New Trilogy & TV Show
6. The Witches Of Dathomir
For a TV show that offers something really quite different, The Witches of Dathomir could be a great fit. The use of the Force almost exclusively focuses on Jedi and Sith, so this would be a way of introducing a different kind of Force-sensitive being, and centring on a unique culture within the universe.
The Witches separate into a number of distinct clans, each with their own rules regarding use of the Force, and have a somewhat friendly rivalry between themselves. The show could gradually explore their culture and the different clans, building a number of key characters in each and having subplots split between them that ultimately then coalesce.
It could then utilise the Nightsisters as villains, requiring the other clans to come together to combat them (and if they really needed a lightsaber-wielder, they could do a lot worse than Asajj Ventress).