Once you've had your system for a little while, you might want to explore additional filter types including low pass gates. If that's not your thing, you can try additional modulation sources. The Worng Vector Space looks tasty as well as the Xaoc Zadar quad envelope generator.
Granted, you can't go wrong adding an Expert Sleepers Disting Mk4 for a sampler-pack of useful features you might want to add a dedicated module to reproduce.