Another possibility: https://www.modulargrid.net/e/wmd-sclpl This thing is a very shrunk-down variation on the Serge Resonant EQ, fits in 4 hp, is full stereo, and it can morph between settings which gives things shot through it the ability to have seamless and wild timbral shifts.
As for sequencing, my suggestion would be to go with a Make Noise Rene/Tempi pair. Those two have some backplane connections that allow them to get into some more advanced functions. Plus, if you add a Brains (only 4 hp), you can also make the Pressure Points function as another sequencer...only four steps, sure, but if you need sequenced transpositions, it's perfect.