There was a part in Taris where your PC with Canderous and another chosen party member had to find their way out of Davik's estate to get to the EH. And there was a sort of cave-in effect to show Malak's ship bombarding Taris's surface. If there was some sort of shake-up effects at some point in K3, maybe like a plan to eradicate people on a planetary scale to indicate a turning point and twist in storyline, it might sort of guide its plot towards alternative challenges subsequently in the game. Of course, would not want to use it more than once.
Would not mind having K3 for Windows Vista as long as it can also operate on XP.