These features could be implemented in several DSI products (where applicable):
#1 Global LFO mode, alternatively "Free Sync". I miss being able to set the LFO to global operation, i.e. one LFO for all voices. If it's not possible to make an option to have one of the LFOs operate as a global LFO, an alternative could be something called "Free sync" (as opposed to Key Sync), basically that the LFOs are free running, but in sync with each other.
#2 Random (per voice) modulation source. Basically a random source in the mod matrix where each voice/note gets a new random value (bipolar). I've seen this feature in some soft synths, and it's great for getting some natural detuning between voices in a chord for an example, but can also be used for i.e. envelope times, etc to get some more variation between voices. This could also be super cool if it could be used in conjunction with unison if applied to i.e. filter cutoff with a high resonance setting (each voice getting it's own random cutoff value).
#3 Clock sync option for modulation effects. The Phaser and Flanger effects in particular could benefit from having a clock sync option.
#4 Frequency and time values on LFOs and EGs. When not in CLK SYNC mode, the LFOs would show the actual Hz rate, and the EGs would show the time in ms to sec.