The Clone Wars season 7 provided a new perspective to fans on the events of Star Wars Episode III: Revenge of the Sith. While Ahsoka was preoccupied due to the Siege of Mandalore, Anakin was on the other side of the galaxy, going through hell in his final few days as a Jedi. Ahsoka sensed his fall to the Dark Side, but she was in denial. She had no idea what truly happened to Anakin that ultimately led to his fall, and in particular, was completely oblivious to the heartbreaking events on Mustafar.
"They filmed a sequence where Ahsoka sees herself on Mustafar, fighting Hayden Christensen’s Darth Vader before he’s in the suit. … They had a dummy for a dead Kenobi, and they had clothes for a dead Kenobi. So they had two ideas there. One is Anakin literally kills Kenobi in that fight, where the idea would be Ahsoka and Kenobi confront Darth Vader. Another is he turns into a pile of clothes just like he always did – he becomes one with the Force at that time in the narrative."
Ahsoka wasn’t there when Anakin dueled his master, Obi-Wan Kenobi. As far as the canon has indicated, she has no idea what happened between them and where. Kenobi won the duel, and Anakin lost his limbs and nearly burned to death. Why the creation of this scene is needed for the series is hard to guess. It’s possible that Ahsoka sees an alternate version of reality or goes through guilt over the events that transpired, leading to her Master’s disfiguration and fall.
Perhaps somewhere in her heart, Ahsoka believes that she may have been able to turn Anakin back to the Light Side had it been her on Mustafar. How this scene comes to be in the series is something fans can only guess, and this rumor should be taken with a grain of salt. Nothing is confirmed, but if this scene is in the series, there has to be some more context that’s missing here. Maybe it’s a vision or a nightmare Ahsoka has, or the force telling her what happened and how things may or may not have been different had she been there. As for Obi-Wan, his death or disappearance in this version of the scene is nothing to panic over, as the actual events of Episode III remain the same.
Ahsoka premieres August 23 on Disney+.