Isn’t there an alternate take of Obi Wan Kenobi in a Revenge of the Sith trailer, an outtake from Star Wars 77.
And there is also an alternate angle of Vader leaving his shuttle arriving at the death star in the revenge of the jedi teaser. Or Luke’s blue lightsaber from revenge of the jedi teaser, or that frame from the deleted sandstorm sequence.
Threepio taking the warning sign off the door about the Wampas is also in a trailer for Empire Strikes Back.
…and much,much more…