Bruce F. Webster (one of the co-writers to the original Sundog game) has started a site to re-make Sundog! It is called
Sundog Resurrection (so far) and will be made using open source programming. To see the site where everything will
come together, go to...
SourceForge Page for Sundog
Also, Bruce has his own page with some new playing features he would like
to see in this new version plus some game design hints. Check that out here.