I can say as it sounds in Armin van Buuren gigs and radio - “I had a dream last night”
…about a “real” VCF plugin and new way of that kind of functionality in Cubase. It takes any source (Audio by its volume level, maybe channel difference of smth. / MIDI by key follow or any other CC or combination, logical and/or/xor) and creates dynamic automation lane (many lanes) for target track (or group of tracks) and target CC, including threshold and other parameters to manipulate with result.
How’s about that? Can you add your +1?
Inspiration borns here https://www.steinberg.net/forums/viewtopic.php?p=730843#p730843