personally, I think that showing the endings for the characters is irrelevant and depreciating. If you talked to Kreia at the end instead of killing her, you get a little treat: A look into the future. She tells everyones future, including Mandalore's.
If you like to no what happened when the Beep-boop droid activated the last power node on the ship and GO-TO came. HK-47 actually comes there and stops GO-TO from stopping the mass-shadow generator but was cut from the game becuase building HK was a side quest and not everybody would do it.
Do not fear death. Death is all around us. If we show fear it jumps at us faster than lighting, but, if we do not show fear, it casts it's eye upon us gently and guides us slowly into infinity.