Ahsoka Tano's trip to The World Between Worlds was a significant step for her as a character, and she came out of it altered in many ways. In a new interview with the Dagobah Dispatch, Rosario Dawson gave insight into Ahsoka's character arc, her work with Hayden Christensen, and what the future holds for the character.
From the moment she debuted in live-action, Dawson's Ahsoka seemed cold, unemotional, and guarded. Many people were critical of her performance, but she didn't choose to play the character this way. Ahsoka suffered one loss after another, and as time passed, she became alone and spent years trying to survive. Because of that, by the time the character entered live-action, she needed to go through an experience that would change her completely as a person. That came in Ahsoka Episode 5, "Shadow Warrior," when she came face to face with her former Master, Anakin Skywalker.
According to Rosario, Ahsoka needed to "soften." By the time she met her Padawan Sabine Wren on Peridea, "she's graduated to a different place." The use of "graduated" may be pointing to Ahsoka finally completing her training and progressing from a Padawan to a Jedi Knight. This was made possible by her trial in The World Between Worlds, which she passed. Anakin wasn't kidding when he told her he was there to complete her training and give her one final lesson.
Emotionally, Ahsoka was stuck in one frame of mind for many years as she struggled to come to terms with what happened to Anakin and the role she believed she played in his fall. However, his meeting with her helped her make peace with what happened to both of them. It may also have marked an important progression in Anakin's arc. By completing her training and helping her be freed of her emotional shackles, Anakin helped her "graduate" to the next level. But if Ahsoka graduated from a Padawan to a Jedi Knight, what does this mean for Anakin?
In Episode 5, "Shadow Warrior," Anakin's wise and balanced approach to teaching Ahsoka was for her benefit. It may also have been a sign from Dave Filoni that Anakin, too, had graduated from a Jedi Knight to a Jedi Master. When he was alive, he never got the chance to complete Ahsoka's training, something she also acknowledges. He never saw her become a Jedi Knight, but completing a Padawan's training is integral to being granted the rank of Master. By giving her one final lesson in Episode 5, Anakin crossed a significant milestone in his journey as a Jedi.
It's reasonable to assume that Ahsoka's "graduated" emotionally also means that she can now be considered a Jedi Knight. She completed her training thanks to her Master, Anakin Skywalker. In return, by putting her through one final trial, Anakin may have finally attained the rank he sought when he was alive. He sounded and acted like a wise Jedi Master. It won't be a stretch to assume that in the process of finishing Ahsoka's training, Anakin did become a Jedi Master. In death, he's attained the rank of Master and the ability to save the people he loves.
Dave Filoni and Hayden Christensen can offer more insight into whether Anakin can finally be considered a Jedi Master, however, symbolically, the signs are there. We can assume that Master and Padawan achieved the ranks that eluded them for years, and they did it together.