This idea may sound crazy to some of you but, maybe add the part of dialogue between Ahsoka and Anakin from “Rebels” during the Lucas film/A long time ago… sequence? Like the clone troopers that could be heard in the theatrical TCW movie during the Lucas film/A long time ago … sequence.
That is what I was thinking…… Anakin/Vader dialogue from Rebels and visuals from Rogue One or Kenobi.
Oh, actually it’s a good idea as well. I would definitely be interested to see something like that.
Also, I think that if you were to restructure it and add some flashbacks before, then the flashback from Ryloth could work well as a separate flashback/vision (ending with the silhouette of Vader), as it’s the only “past” part where we don’t see that clearly that it is the adult Ahsoka in her teenage body.