The sad part is that Les is moving on. There won't be any new Survivorman episodes.
He's a musician, film maker and survivalist. He's got some projects lined up to combine them together.
I've heard a couple things... something about retracing the routes of various early explorers. Doing it with tools of the time.
I've also hear about some IMAX type stuff, with a mix of wilderness and music.
If you haven't checked it out, I recommend reading some of Les' stuff from his web page.