Those smurfing sheep. I GOT THE FLUFF FROM THEM. WHAT NOW SQUARE ENIX? WHAT NOW!??!?!??

Serious response: I wanted the sequel to kick off right after the ending, and to focus on the people of Cocoon discovering and adapting to the world of Pulse, and probably some random story about traversing Pulse until they eventually find another people, perhaps then fighting off all of the bad fal'Cie to avoid anyone ever becoming a Cie'th ever again.