Here's some more info from the TFN.
Cad Bane being my favorite Star Wars character, this part stood out to me:
Among the story arcs that will not emerge in this post-cancellation era is one that dealt with Boba Fett and the other bounty hunters who have menaced the heroes for several seasons. This story arc, which my source tells me was almost done, would have shown us the fates of Cad Bane and Aurra Sing.
Also, according to this article from i09.com
, we will be seeing two finished arcs but neither deal with the fate of Ahsoka.
My bet is the first arc will be about Jar Jar as he struggles to convince the senate to put through a new bill regarding taxation, and the second will be about those loveable droids and their tiny colonel leader.