Angry Birds Star Wars features a lot of unused content and they are:
Unused EpisodesJabba's Palace, it probably would be a set of bonus levels, a bonus episode on Cloud City or an episode before Moon Of Endor. It probably would feature the Moon Of Endor beginning cutscenes and Jabba as a boss, however, it was removed but Jabba still appears on Cutscenes.
In the sheet for upgrades, green updrades of Obi-Wan-Kenobi, Han Solo and Chewbacca can be seen, which were intended to be given for the characters after completing some levels. It was cut because it couldn't fit into the episode.