Bingowings said:
In the original treatment for Revenge Of The Jedi there were TWO Death Stars being built as seen in this production painting :
It might also be a fun addition to an alternative version to have Jejerrod being presurred into completing one Death Star (the one the Rebels know about) but the Emperor overseeing the construction of a different Death Star.
The audience is lead to expect that they are the same Death Star until Luke notices when looking out of the window as the station moves that the battlestation he is now on is not the one that the battle is taking place near.
http://www.youtube.com/watch?v=jt0c4o4Rr1M
Bypass the opening crawl, and I apologize in advance for the less than perfect after affects work. I'm no Adywan :(