of course it's an obvious one, but i agree. just two multimode filter flavors would be heavily dope.
i know the concept behind ace might feel overrun or outdone by now. but it's nice and sounds good (still) and honestly it's cool to work with a well laid out synth that has the modules it has and that's it.
i wonder if maybe thinking it out again from the frac/blacet/and also wiard mindset might differentiate it enough and point toward a good fixed-modular-architecture whatever you call it. analog oscs, waveform cities, multimode filters, envelopes that live somewhere in the between ms-20s and buchla. i know eurorack has consumed all of that by now, but still, that's not what i'm getting at.