The last month has been really busy with lots of great improvements to the game. Firstly there's a new "test flight" mission type where you can build your own simple mission by selecting what types of planes you want to fly against. This mission is based on a brand new map with lots of improvements over the current demo map.
The next big change is the forests which are now much more dense. These not only look better but actually perform faster.
Next is the towns and cities which are now larger, and have more buildings and other details. There's still more work to do to bring life to them, but they're already a big improvement.
There's also been plenty of other improvements, bug fixes, and more. You can check out all the details in video here: