I wanted to start by saying that I have been running a D&D game for the last 15 years but have only just discovered you guys. Now I am hooked. I kept all the files a closely guarded secret until i was able to spring it on my players! They were stunned!

I made one of the masterboards to make designing a little easier but found that I actually have more fun if I build all my encounter areas from scratch. I like to mix and match from all of your sets but was wondering if we can expect more wilderness type terrain like Trees, bushes, rocks, riverbeds, outdoor ground tiles, or perhaps an earthwork frontier fort of some kind?

If you take a look at SeaWorks: Legend of Skull Cove, you might find some of the elements you're looking for. There's a wooden palisade wall type fort in it, as well as some outdoor terrain, though it's more of a tropical island sort of appearance to it.

http://www.worldworksgames.com/seaworksone.html

There are also some limited earthworks in Siege Works. And a moat is included in CWU of course...

The Auld Grump