What extras? Not sure. Maybe the raw new fx footage I added in. I think I may put on a CGI comic story I did a few years ago called Battlestar Galactica: the Sentinels... which is kind of a spinoff that takes place during the destruction. There is also a short trailer I put together for that which I will include as well.
I would love to add more Imperious Leader, but there is not much to add. There is one scene on Carillon where you see a holographic image of him, but getting the Patrick Macnee voice tracks to go with it may be tough. Without sounding repedative.
I do wish the Imperious Leader was kept as originally planned. Loved John Colicos in the series, but the odd alien looking presence of the Imperious Leader among the robotic Cylons was rather cool.