Hell something on the order of: Anakin's hand gets chopped off by Obi-Wan, he gets truly pissed(tm) and chokes Obi while they've been dueling over a convenient rock bridge over the lava.
Padme's ship dramatically flies in from under the bridge and she sees what's happening to Obi-Wan. Quick flash to her memories of Anakin and the Emporer together, how they've been torn apart and he's blindly serving him instead of the ideas behind the Republic, her eyes watering as she fires the ship's guns into the bridge behind Anakin.
Bridge collapses, Anakin grabs onto the stone with his good robotic-hand, clawing to keep his grip but quickly slips. Obi-Wan falls down and composes himself grabbing his saber as well as Anakin's and hops onto the ship's ramp.
The ship begins to take off, Kenobi walks into the bridge and sees Padme crying on the controls. She killed Anakin.
Anakin falls into the sea of cinders and bursts into flame, we see the ship fly off in the distance as his charred body looks towards it. There are some tears in his eyes but it's mainly tears of anger.
During the birth scene there's a small line about her losing a lot of blood, but they can keep her stable until they reach Alderaan. Padme asks Obi-Wan if when she dies she'll rejoin Anakin when she becomes one with the Force, and whether or not he will forgive her. Obi-Wan nods saying that he knows that what you did was the will of the Force, but also says that she has many long years before that, and he is certain that she will be crucial in defeating Palpatine to make the galaxy better for her newly born children. She then looks at Obi-Wan and says that she knows that Luke and Leia will be safe with him, smiles, and says that she can almost see him already. Obi-Wan definately looks concerned, holds her hand and tells her that her time is not yet but she lets go.
Yoda then walks in with a grim expression, insert comment about attachments causing suffering and sensing a terrible disturbance in the Force.
Cut to the Emperor finding Anakin's body, clearly dead or almost dead and he concentrates and he starts breathing. (Sith coaxing life out of the Force, minus the whole nematoad thing) "She betrayed the Republic... she betrayed me..." line that he says while clearly in pain. "Lord Vader, it pains me to inform you that Padme has died. Died at the hands of the last of the Jedi."
Vader is silent, clearly angry. "Let your anger give focus, but be mindful of what must be done. Our new Empire will keep others from being harmed by those such as the Jedi. Come my friend, you have suffered long enough."
Cut to Vader suit scene, his charred and burnt lower legs (bones peeping through and all) get cut off and replaced with robo-legs(tm) and the only dialog here is the "Yes Master." Also the chair bit would be redesigned a little to be less "Frakenvader" and also no lightening. Just rain.
Overall, a little more plausible here and there
