Create a supertrope for fox spirits in general, leaving Kitsune for Japanese-only examples

Create a soft-split so that non-Japanese shapeshifting magical foxes have a place to go (regardless of what else is done)

Create a supertrope for fox spirits in general, a supertrope for Asian fox spirits, and leave Kitsune as a subtrope.

Create a supertrope for all folklore/myth/fable/modern depictions of crafty foxes, and broaden Kitsune to cover the various Asian shapeshifting, multi-tailed foxes.