Ah... given a specific part of the audio novel (when they're at the Moonflow) - that actually makes a lot of sense. The reason we keep mentioning Sin returning though is something else in the audio... which is Sin returning. I know it should be impossible for Sin to return given that Yu Yevon is gone but maybe he/it can come back and thus bring Sin back because the Farplane is broken?Glademaster said:They didn't move because of Sin they moved because the Farplane basically broke. So assuming that things work like in FF7 going with how things with the Lifestream work the planet just reached the end of its life cycle. That would explain why the Farplane started to collapse or something like that. I can't remember exactly how but there were problems with it. That would also be why they move as Sin is not immortal it is only a shell made by Yu Yevon from Final aeons. So as long as there is no Yu Yevon there is no Sin.
In any case, all of this doesn't sound like good territory for a game to explore. It feels like they're flogging a dead horse now. I really think they should just leave it all alone - it's getting very needlessly complicated. Maybe the purpose of the audio novel is less of a tie-in and more market research; so they can gauge fan demand.