I'm being asked about Soft7 a lot and I think about it each time. But the main motivation behind Soft7 was Aero and the transparency, I know many people also liked the gray command bar, but that was really not something I liked that much myself. The theme was based on transparency, simplicity, and make everything without a too high contrast like the default Aero of Vista / 7.
And this is why I really don't know what I could do with that under Windows 8 or 9... And the only way to get a proper aero effect under these OS is with a paid software (Aero Glass), and I don't want to release something on dA that would require to pay for something, and I'd also not recommend at all to download or hack the thing illegally.
I also don't feel comfortable on working on something for dA (the place where I do things for fun) where I don't have that much motivation, because I'm not into transparency anymore. Right now it feels as a thing of the past.
But, even if I've got some difficulty with Windows Style Builder under Windows 8 (...), I still have some themes in the work and ideas for others. I just wish I'll have the possibility to finish them before Windows 9 will be out (sooner than we expect I think).
I think I'll finish the one I'm working on these days, then maybe release mockups of my ideas and see the one people like the most (hoping it won't finish like my Lumi project...).
And my current theme will be all dark ^^ so I'm not sure if you (and everyone that's following me on dA) will like it or not, all square, dark and flat... we'll see