Here is my thoughts on a new Star Wars Franchise Series for the big screen:

Prelude to Star Wars:
Episode 1-Origin Of The Force
Episode 2-Dark Side RIsing
Episode 3-Knights Of The Old Republic
Episode 4-Cave Of Shadows
Episode 5-Master and Apprentice
Episode 6-The Son of the Suns

What happened before Yoda and the Jedi Council? How was the Sith born? Who were the Mandolorian Warriors? Let's answer all those questions in movie form, George!

Origin Of The Force: A long, long time ago in a galaxy far, far away...a scoundrel running from a Republic blockade of illegal spice operations crash lands on Ilum, a baren ice planet with a strange race of people, Kaiburroians, who worship powerful crystals. War escalates as the Mandalorians feel a strange power is corrupting an ancient primitive race known as the Sith. The Mandalorians attack this native planet against Republic orders, which puts Condawn, a Concord Dawn Peace Corp Group hired by the Republic to investigate the war declared by Mandalore, in a posiiton where they must choose sides. They are lead by Ambu Fett, Commander of the ship. Meanwhile, a rescue brigade sent to Ilum to rescue their buddy space pirate finds that he has become rather pwoerful since his crash.

Dark Side RIsing: The Space pirate from Ilum has discovered an ancient force and he and his friends all become quite powerful, only, he cannot help but try to control the others. A small battle ensues between them and he is forced to run. He escapes to the Sith planet to discover his true calling and a darker power and a new name, Darth Apocolyp. The others join and the beginning of the Jedi council is born. The Mandalorians are now enemies of the republic and are lead by their new commanders, Ambu Fett and Mandalore. The New Jedi will now face two enemies.

Knights Of the Old Republic: Similar to the video game, these are the times of the Old Republic, where many Sith now roam the galaxy, in search of power. The Jedi are many and strong and the Mandalorians are overrun. Prophecies are written in Journals by the Whills, a race of intelligent beings, who claim to see the future. They are asked to join the Jedi but refuse and take a darker role in the FOrce, although not quite Sith, these Dark Jedi are Shaman of the Force and can see many things, including the Chosen One who will bring balance to the force. The SIth are destroyed in a great battle, however one remains.

Cave of Shadows: Many years later, we see the earlier years of Master Yoda, as he tries to uncover the secrets of a war taking place on Dagobah. A strange cave houses an evil spirit of the dark side, which Yoda presumes is the resting place of ancient Sith holocrons, and a dark jedi presence. The Mandalorians are now extinct except for a family of Fetts, who are not born in the blood of Mandalore, but carry on their tradition. Dark secrets continue in the clouds of the dark side as Darth Master Bane passes his teachings to another Master who takes a new apprentice.

Master and Apprentice: Many years later, we see both sides. The Jedi: Master Yoda teaches a young Count apprentice from Serenno that there is more to life than riches. In the Shadows we see Darth Plagueis teach a young apprentice and aspiring senator from Naboo the darker side of life.

Son of the Suns: Dark rumblings in the force will soon produce new life and change the galaxy forever. Apprentices betray Masters. A young Jedi finds a shaman of the force who was an old wizard of the Whills, and learns a new power the jedi have not embraced and only the Sith long for but cannot accomplish. Will the prophecy come true and for who? This takes place 30 years before The Phantom Menace and Star Wars.

THis is only an outline but I think it address the main parts of each story. Please add your comments, I really would like to see if there are any better ideas out there...