For the past year or so I have been in communication with +Simon Bull , whose input has had a huge input on my upcoming releases for Delving Deeper RPG. As Simon continues his work on DD, he hopes that other publishers and writers will expand on the game with adventures, settings, and other supplements. Part of that vision has been to create a "Zero-Edition compatibility logo" for use with Delving Deeper material, and other 0E/OSR creations. I've been able to help Simon fine tune the logos a bit. Simon did a great job with the logo design and offer these images as a preview of greater things to come.
As for my own additions to Delving Deeper, I have two classes - the samurai and the ninja - ready for imminent release on DTRPG and Tabletop Library. They will also be available directly from the Simon's DD site. These classes will be part of a larger supplement, Eastern Expeditions (c), that will expand DD games into the realm of mythic Japan.
You can get Delving Deeper freely here, browse the hypertext online, or grab a low-cost paperback copy from Lulu!