Master Qui-Gon said:Yeah but how would you handle that Amidala and Bail are senators of the same planet?
Amidala could be head of state (like a constitutional President or Monarch, she is a Queen) Bail (a Viceroy) could be the local Senator and elected political leader once Palpatine has been promoted to Chancellor.
Living here in the UK HM Liz Windsor is the constitutional head of state but her Prime Minister Rt Hon Gordon Brown (texture like sun) is the elected political leader of the country and leads the country in the UK Parliament and during treaty negotiations.
The Queen still has certain powers (she can in theory desolve Parliament and war can't be declared without her approval, something Margaret Thatcher discovered to her embarrassment during the Falklands War) but it's the PM that heads up the day to day running of the shambles.
A similar set up exists in Eire which has a constitutional Presidency.
So you could have Queen Amidala and Viceroy Bail Organa both representing different arms of the running of Alderaan.
In a revised prequel trilogy she could remain Queen all the way through and just edit the references to her being a senator.
Do any of the scenes with the other Queens of Naboo add much to the story?
The other Queens could be further decoys if the scenes are needed.
Would the Emperor allow the destruction of his (supposed) planet of origin?
I can't think of a better way of setting an example to the rest of the Galaxy, tyranny begins at home.
Sure, Tarkin came up with the plan but I could see Palpatine giving the scheme his blessing.
Palpatine doesn't need public approval at that point, he wants to control the galaxy through fear.
Showing that even his own people weren't safe from his destructive whims would polarise opinion, the Rebels would be more rebellious but the floating systems would be less likely to join in the fight.
Bail Organa was going to be in TPM and Adrian Dunbar filmed some scenes in the role :
but Lucas either didn't like them or him and his image was retconned into being Bail Antilies in the EU.
If Naboo was to be reduxed into being Alderaan it wouldn't be too difficult to alter Pananka's line refering to Bail one way or the other, Dunbar never appears in any of the final shots anyway.
Dunbar is a good actor I'd like to see the footage, maybe he was another TPM cast member who didn't take to George or visa versa, Ralph Brown described Lucas as "a man lacking in human decency", Terence Stamp was not impressed when he was asked to act to a mop because Lucas had given Nat Portman the day off (George didn't think her presence was necessary) and Hugh Quarshie was "made an offer he could refuse" to be in AOTC.