What really makes this seem unlikely to me is the idea that 1) Feige even knows who Ahsoka is, let alone want to tell a story with her AND already has an actor in mind, and 2) that anyone but Filloni would be given first refusal for the first live action appearance for this specific character.

(headbanging over how many complained, which still boggles my mind but we live in a day and age where you show someone a comedy movie made in the 1980s and they're upset when the expected fart noise didn't materialize on cue since that's what all comedies now think is funny...) ) It was one of the movie's most jaw-droppingly big scenes...