The issue i see is, once they're on another planet, kiss the rest of the path goodbye, the only way they'll leave Akiton is if you make them, and player's hate that!
best just leave it alone is my opinion:)
Your call. You'll quickly be making it up as you go however so if you can ad-hoc locations, descriptions and NPCs then do it. Just be sure to remember them for later when the players return... which they will.