From their newsletter:

Amazon knocked back the latest version of the script for The Invisibles last week, so that’s that. It’s unlikely that project will ever get adapted now. I’ve sold it five times now, I think, to different companies, and written five different versions of a pilot or feature script! I don’t think I have another ‘take’ on the material left in me. I was never going to get away with a story where billionaires are working with evil ultraterrestrials to accelerate global warming and environmental collapse as a means of terraforming the planet for their masters while engineering a race of slaves to serve them… not at Amazon!..

A pity as it seems very timely, although it always has.