Mythros, could it be possible to add a battlefield portal that can only be activated after defeating the big-bad. By using the big-bad's magical artifact, you can not only activate the portal, but redirect it to a random location at will.

Essentialy, what I'm asking for is a battlefield that can be re-randomised at will via a scripted object (magical control panel). Making it accessable only after completing the game will prevent any imbalances.

Thoughts?