I also think we might try re-editing the Padme death scene in ROTS so that Leia is born first. If you remember, in the film as it is, not only is Luke born first, but he spends the most time with her; she even speeks to him, ad he is by her when she dies. However, we could re-edit it so that she says "Leia!" with the first birth, and move the line where she says "Luke" to after the second birth. We could remove the line entirely where she says "Oh, Luke" , as we would need to draw as much attention away from Luke as possible. This would help continuity with the ROTJ scene as well; Leia would appear to be the one by Padme at death.