I am very sad to hear this. It is quite a loss to the flight sim community.
From me a very big thank you to Darren and Vikki for producing scenery that has life and soul. I have all their islands, Shawbury Fields and NW Scotland, and it has to be the most beautiful and realistic scenery in FSX. Whenever I want to fly low and slow, and follow real roads, I will continue to turn to their scenery. I'm sure there are some little animations and features I still haven't discovered. I wish you guys the very best for the future!