After game logic will be separated from UI (depends on #1970), we can have a headless client (no, not the unit) which could generate data streams that can be plugged into various visual modes (renderers).

A crazy idea is to have the game playable from any CLI, so you would see the combat field with symbols for units, input text for actions based on the hex grid coordinates. When active unit performs an ability, could see ASCII art of the unit instead, maybe even with a few frames of animation for the lulz.