I'd like a game where your main method of locomotion wasn't always your feet. Some landspeeders would be nice...where you actually rode in/controlled them, not just clicking on something and then going to a black loading screen...One thing I liked about Sacred was riding a horse all over the place. Riding (and fighting while on the horse) had it's control/techie problems, but it was pleasant to do something besides run run run everywhere. WoW's beast riding transport system is fun too, tho it certainly didn't alleviate the running much in that game. Meh..
And yes, I know it has nothing to do with story or anything. And in terms of Kotor you'd have to enlarge the landscape/terrains a lot for it to be worth doing, which I doubt very much they'd bother to do. But I'd still like it, if done well.