Bingowings said:
The idea I had was that by having Qui-Gon announce he has found the chosen one it sets self doubt and panic within the Jedi council.
For a thousand years they have assumed the Sith to be extinct but if the chosen one exists they must still exist for him to destroy and what does bringing balance to the Force mean?
Two Sith and thousands of Jedi, where once there were thousands of Sith and no Jedi...oh dear (you can see why this chosen one would not be a welcomed savior).
Well those are all questions that were not answered until RotS, if at all.
There were many points of story that Lucas ditched and didn't seem to follow through on.
An explanation of what the chosen one is, what balance means, and who the sith are and why they want revenge would certainly make the story better, especially the sith.
They need more back story and motivation.