Yeah, they released a good video breaking down the intentions of the changes. Trying to increase downforce and lessen the impact of dirty air. Honestly once you see past the terrible livery, it looks pretty cool and should bring better racing hopefully.
They did not help themselves with livery on the mockup car. It's very futuristic looking with the big radii and swooping wings.
Should be very interesting to see how different the actual team production cars are from the mockup that F1 has.