Has anyone ever requested this? I think it would be a cool way to leave a 'footprint' behind.
..so it wouldn't revert to neutral for opponents for a complete round of turns?
I'm trying to think of the "natural/organic" applications.
Well, for a dungeon exploration, leaving a footprint behind for a turn could be useful to opponents and vice-versa.
For example, in my Skullduggery map, where every location is a max unit of 1:
http://www.wargear.net/boards/designer/7245
Would be cool for sure. And could either be implemented to count for territory bonus or not, depending on where the action is put in the timeline. Same for continents/factories.