The latest episode of TCW, "Citadel Rescue," Episode 3.20 has a ton of character development for Ahsoka and some really interesting interaction between Ahsoka and Plo Koon at the end of the episode.
What casual fans may not realize is that the reason Ahsoka Tano is a Jedi at all is because of Plo Koon.
From the Wookieepedia Biography of Ahsoka Tano:
Ahsoka Tano was discovered by Jedi Master Plo Koon[1] at the age of three[5] during a mission to Shili,[1] and was raised in the Jedi Temple. Tano considered Master Koon to be among her oldest and dearest friends by 22 BBY and felt a large amount of gratitude to him for discovering her Force sensitivity and ensuring that she would be given a home at the Jedi Temple.[6]
The closing scene of "Citadel Rescue," shows Ahsoka walking off screen with Master Koon with his arm around her. As close as two Jedi can be who are not formally master and apprentice, we have a relationship here that is like a foster parent/child. There seems to be a great deal of affection and respect between Plo and Ahsoka.
As TCW evolves over the next few seasons could we see a move away from Ahsoka-Anakin to Ahsoka-Plo Koon? Anakin and Obi-Wan as the most effective Jedi in the galaxy may simply become to busy or involved into to many harrowing missions for the Jedi Council to feel comfortable with a Padawan accompanying them. Or perhaps Ahsoka and Anakin have a major falling out of some sort. What if Ahsoka discovers the relationship between Padme and Anakin, and this drives a wedge between the two because of Anakin's disregard for the Jedi Code. What if Ahsoka simply graduates to Knighthood and decides she would be more effective aiding Master Koon in his adventures instead of Anakin and Obi-Wan.
There are limitless possibilities, but there appears to be some heavy foreshadowing in "Citadel Rescue," and it has me wondering whether or not Ahsoka Tano's past with Plo Koon will lead her to a future with him as well.
