It would be nice to have some parameter modulation options. For example Reaper does this really nicely: you can modulate any param of any plugin by the input audio level (sort of an envelope follower), a LFO, or link it to a param of an other plugin, or any combination of the options.
Nikolai Bergstrøm commented
It's a good idea that we have been in the back of my head for a long time.
I think I would implement this as an optional module though, that could be added if you needed it