Okay, I've spent a week thinking about it and I'm in
Well, to actually have some time on my new PC and give Octane / Embergen a real workout.
I'm thinking of using a toon-shaded forest environment with a blue shield effect that defends itself against incoming sci-fi objects from the real world, so a red-versus-blue effect, a high military versus toon Elven / forest magical defense.
Let's see if I can be ready in 2 weekends …
Good luck everyone, there is some amazing work already on this thread.