At this point in the development, the unique mechanics for Karma v3.0 have been designed and had the layout mostly finished. I've decided to wait 1 month to see how progress goes on the Blades in the Dark SRD. When that comes out, I can start making this came for official--and also don't have to rewrite the core Blades rules just to avoid copyright infringement.
If there is no new progress in the SRD by mid-October, I'll go ahead and release a hack version of v3.0, which will basically be like the current Scum & Villainy release--unique rules defined, and then just pointing players at the Blades book for the rest. I don't like that patchwork method, but I think it's the best way to do until the SRD and common creative license is put in place.
In the meantime, I'm working on a small side project. I'll write up some details on the design blog.