SW also has an EU storyline of the old republic, for 25000 years past, so you can't say it grants much more freedom to the storyline. Kotor fills this EU out well. They talk about Exar Kun, Nomy Sunrider etc... The time when the story designers could have the most freedom, is 500, or more years after the Rotj, so a Kotnr is a good idea, but only after the Skywalkers time, and that Yhuzaan ****. But i will be also happy if they make a kotor3:-)