The following is a possible spoiler if it ends up being true, so highlight to read:
Shawn M. Blake recalled that when Timothy Zahn started writing Heir to the Empire, he actually wanted Joruus C'Boath to be a clone of Obi-Wan Kenobi. Lucasfilm axed the idea. Was it because he wanted to use the idea in the film? Consider this. Marvel Comics at one time wanted to do a story about a second Death Star, but Lucasfilm axed it. Then, lo and behold, it showed up in Return of the Jedi. Hmmmmm. Schwoozer also noted that Ray Park's only other credit at the Internet Movie Database was in Mortal Kombat: Annihilation as...get this..."Rayden's double". Experience as a double, eh?