The one thing that i want to see more than anything else in a CV quantizer. We're all familiar with quantizing when it comes to timing but what about pitch? Yes we have neptune that can quantize monophonic audio but having something like this for CV would be very powerful.
Imagine turning the signals from LFO's into arpeggios that fit perfectly with the harmonic content of your tracks. Imagine randomizing the matrix sequencer then not having to move all the notes about so it fits in with your track. The quantizer will let you program the scale in the same way neptune does by having 12 buttons representing the pitches in an octave.
Here is a link to a eurorack modular quantizer.