the exile will be the main again in KOTOR3 following after revan, this is heavily hinted upon in the conversation at the end, obsidian was nice enough to give us closure on whats going to happen to our trusty companions, im somewhat confused as to when she says bao'dur and the droids futures were unknown its possible they will infact accompany you in the next game, thats why obisidan would have porposley left out their futures in the last conversation, all you have to do is carefully pay attention to and anylise kotor2 to see what 3 will be about, its blatently hinted upon. As to places, it is posible but I find it more likely you will not be going to any of the previous planets gone to in the first or second games.