I've had this "imperial centre" idea years ago but I always thought it would be impossible to make as a fan edit, so I never even suggested it. But at that time, I saw an ESB comic book that was compiled from screenshots, so using screenshots from ROTJ and using photoshop I started working on a comic book which I called Revenge of the Jedi and was supposed to be a better version of ROTJ. Sort of a comic book fan edit. But I never finished it. I had a whole treatment written but I only ever finished two parts out of four planned. Here's a website that shows a part of it: http://revengeofthejedi.wz.cz/

Please note that I did this when I was 16 or so, so neiter my English nor my photoshop skills were very good. The comic has gone through some changes since then but it shows the general idea.