I don't think anyone saw Makeb coming seeing how it's an invention from Bioware ( I believe). As for planets I'd like to see? I'd like to return to Dantooine where players found color crystals for their light saber, would be a cool farming area to get special crystals, like Ilum is for the magenta crystal. Kashyyyk is a good choice too, beautiful environment and wookiee companions, would be great. Returning to Malacor V would be great too, see the aftermath the events of Kotor 2. Lots of the great potential areas.