Davnes007 said:
It's already been suggested that Naboo be turned into Alderaan, but what would Coruscant need to be changed/merged?
This  isn't the same logic as turning Naboo to Alderaan entirely as  previously suggested. This is removing the repetitive environment of  coruscant+naboo from the PT slightly, so they are not so repetitive. ie.
TPM Planets
Naboo
Tatooine
Coruscant
AOTC Planets
Alderaan (naboo/coruscant replacement)
Kamino
Tatooine
Geonosis
ROTS Planets
Coruscant
Utapau
Mustafar
Kashyyyk
(Misc inc. Alderaan, Asteroids, Naboo, Tatooine)
ANH Planets
Tatooine
 Death Star
 Yavin
 
 ESB Planets
 Hoth
 Asteroids
 Dagobah
 Bespin
ROTJ Planets
 Tatooine
 Endor
 Death Star II
 
 
 

 Alderaan Changes - The whole idea of the planet would need to  be re-visualised. It would need to be a metropolis at one point, and  empty fields and lakes the next. I would argue to recreate the white  city that mcquarrie came up with, and combine it with the period  architecture and fashion we get in cloud city. We need a vision of a  peaceful paradise.
 
 Narrative Changes - If there was a way, the planet would need a  brief exploring before Padme arrives, and the ship explodes. This is  still an important storyline as it gets the Jedi into her apartment to  protect her. If we have a backdrop of peace, then the explosion would  seem even more shocking.
 
 The speeder chase would need drastic editing, as the city would  not pass as Alderaan. I would imagine that the chase would begin in the  city, then move on to pastures and mountains. It could end perhaps in  another urban environment like a floating station?
 
 The Jedi temple could possibly be cut, but I always liked what  SSWR did with that scene, as it casts anakin in such a good light, and  sets windu up as a potential antagonist. The temple could therefor exist  as a space station (which could be incorporated into TPM and ROTS  edits). As the Alderaan conference is so important, the Jedi could have a  security presence. This space station could also travel to Geonosis  later on, although I would fancy it as purely defensive.
 

 
Anakin and Padme eloping would then be them moving out to a more remote part of the countryside.  Perhaps even an inserted comment that the attackers would expect her to  flee back to naboo could be added (i always thought it was a bit  obvious). They would carry on as before, and would leave for tatooine as  before, then go to geonosis - as before.
These are just IDEAS at the  moment. And i haven't thought the entire thing through. Please give it  some thought though, as I really think this could be a good thing to  talk about. There are still BIG plotholes, but just think of ESB, this  is sort of hoth and bespin rolled into one.