I was/am doing the techno groove box thing, so here are some notes/concerns...
You have lots of modulation but some of them appear kinda redundant when you take a closer look.
For sequenced modulation, you have three modules(kinda a lot for this size) and two of them are quantized and then a quantizer. I think its important to stay in key, but this is also techno so I think you could remove at least one stepped modulator and the quantizer, or if you really want it, find something that is smaller. Also, consider a small precision adder.
Look also for CV mixers, rectifiers, inverters, etc.... These will really allow you to capitalize on what you have and essential make all new modulations sources. Matrix mixer is also a good shout. Can combine gates, audio, and modulation really useful.
Steppy is fine, but I would check out the Shakamat Four Rooks for perfomablility.
Quad VCA -----> 2020 Veils.
I would also suggest looking into noise sources, Low pass gates, simple oscillators that can be fm'd. Can make for some really unique clamorous percussion.