Frey said:
What if, as the PT fades into the OT, the audience does NOT suspect that Vader might think of killing Palpatine.
We suspect that? Or do we only suspect it because we already know that it will happen? And how is this connected to the rule of two?
You'd need to twist around a lot more things to make the prequels even work in a numerical order, there are a lot more obvious spoilers for the OT that need to be taken care of.