Really been loving the TEO-5 overall and just wanted to add a few more feature requests to this thread!
1) Voice Random/Polyphonic Random - The monophonic Random in the mod matrix is really useful, and it would be great to have polyphonic per-voice randomization tied to each key press.
2) LFO Phase: Being able to offset the phase of the LFO's in the mod matrix.
3) Voice Allocation Behavior: From what I can tell, in polyphonic mode the synth does round-robin voice allocation, and in monophonic mode it changes to always use Voice 1 until you start stacking unison voice count. It would be great to more freely configure the voice allocation per patch, as there's a lot of unique creative things this synth could do if it had monophonic + round-robin, and Prophet 5-style 'reset mode' would be useful for polyphonic playing.