Originally Posted by
metagloria
New idea.
This is probably too open-world for an FF game, but I think it'd be sweet.
The main antagonist is some evil corporation/government hybrid like Shinra in VII, or Monsanto in real life, rather than some single figurehead. There are, let's say, four main people involved with the machinations of this corporation (think Heidegger, Scarlet, Palmer, and Reeve). Each of them controls and operates different aspects of the big bad scheme. But the game allows you to choose the order in which you take them down, and the game unfolds differently as the fewer remaining baddies scramble to restructure their evil plan as they get taken down. So by the end, you could have vastly different endings based on which person is the last one to retain power.