Quote Originally Posted by Tsukino View Post
I feel like this is the most important theme they have going on that will influence what the possibilities for the next group are. The only ones who really fit the bill are Sephiroth and Zeromus.

They could maybe force Garland/Chaos to work, but I think it's less likely for other reasons. II, VIII, IX, X, XII, XIII...none of those games have a final boss with another form, though at least a couple have the somewhat different "final boss from nowhere" going on instead. III has all that plus the Cloud of Darkness and all its sub-bosses have already been used, which may end up being an extra point against XII too. XI did have multiple final bosses with second forms, but again I feel doubtful they'd use it for this.
Except Ultimecia has several forms.