Hello Dave and all!
We are working around the clock to deliver the best products possible for you guys. Forester 2 is shaping up to be a quite a substantial update, with more features than we originally intended, hence the time it's taking to complete. I still don't have a definite release date, but it is coming.
The landscape generator will most likely be released around the same time, featuring custom shaders and erosion simulation.
Although we are not verbal about future updates, if you check our Facebook page at https://www.facebook.com/3dquakers, every once in a while we release some technology preview images that hint at possible upcoming features.
So yes, it is taking time, but it will be worth the wait :)