Quote Originally Posted by gamesmart View Post
That's probably the most likely reason, as Iceheart has already set the precedent by using herself as a host for Saint Shiva. Both Minfilia and Iceheart have the Echo, which is likely the key in doing so.
If that is the case then that would mean Minfilia maybe the Final boss of 3.0 or Pre-Final boss of 3.0 if they successfully turn Minfilia into Zodiark's Host body.