As you've noticed there hasn't been a whole lot going on lately. That should change next week with the release of EDuke - an enhancement by Matt Saettler to the v1.5 Atomic edition of Duke Nukem 3D. What's EDuke? Well, we'll let Matt tell you in these words from the EDuke site.
Enhanced Duke is modifications to the Duke program itself. Matt Saettler has the source to Duke Nukem (from pervious projects for GT/3D Realms). Enhanced Duke builds on the changes Matt made for those projects (WW2GI and NAM/Napalm) and goes much further.
The modifications allow much more control over the program from the CON language. The features added are listed on this page. EDuke is NOT a "TC". It will allow TC makers to do many more things. As Matt says, EDuke is not any sort of new maps, new levels, art, or anything. It's an extension of the game so that folks who do make TC's and whatnot can have expanded abilities. If you are into making maps, your own art, or other TC related issues, than you'll be interested in EDuke. If you don't do things like this, EDuke is not for you. If you want to learn more about EDuke, head over to Matt's EDuke site.