*Spoiler*
So with that being said the idea that at the end Serah dies and Lightning encases herself in crystal until the end of time. I believe that there will be a Final Fantasy 13-3. Not to mention Square has hinted at it. Toriyama has hinted at a possible sequal. "Asked if anything Final Fantasy XIII related would be announced at the upcoming 25th anniversary Final Fantasy event (an art gallery in Shibuya), he responded: 'I think the Lightning DLC had an ending that left a feeling of mystery and hope. The day when the meaning of this will become known is coming in the near future.'"
What do you guys think?