Have you considered incorporating the popular fan-theory in Revenge of the Sith that Palpatine drained the living force from Padme and gave it to Vader? I think it’s a great way to show how Palpatine obviously never wanted to actually help Anakin save Padme, and it makes perfect sense: he wants Padme out of the equation.
I know it’s something I would like to do for my ROTS edit.
No, Padame will survive to line up with Leia saying she knew her mother