What if, as the PT fades into the OT, the audience does NOT suspect that Vader might think of killing Palpatine. That would make the series feel much more whole, and provide a surprising yet impactful sense of closure.
This would almost certainly involve excising the Rule of Two from the canon.
“Okay, I’m goin’, takin’ off. See ya… bye….” — Chip Douglas
“This concludes our broadcast day. Click.” — Chip Douglas