The new title developed after I noticed several things:
1. In the web documentary "Good to G.O." I really like the moment when Lucas talks about the jedi being like marshals in the Old West, the keepers of peace.
2. I often used music pieces of "Knights of the Old Republic II", more than I thought I would.
3. With my edit, I want to create an old atmosphere (like Episodes IV, V and VI)
So that led me to the title "The Old Republic". And this is the only episode it really fits to, because in Episode II we already have a sith controlling the republic and a war going on. Btw, if I'm going to do Episode II someday, I'll take MagnoliaFan's title: The Clone War.