I'd really like to see MOTU spend a little effort on the MIDI plug-ins. They are really showing their age, both in GUI and in options, specifically MIDI controllability. Reason and Live both have extensive MIDI control available with 1 mouse click+1 controller move. Easy Peasy. MOTU should implement that all through the entire GUI but for now if you can imagine controlling arpeggiator patterns/octaves, or transpose keys/octave, MIDI delay etc with MIDI controllers... I know a lot of you don't work that way, but I do with my more experimental electronic stuff. I've been known to stack 3 different arpeggiators all running different patterns.
That's what I do in my spare time. I can definitely see some more possibilities with the Arp plug-in specifically, for creative purposes, especially with real-time control.
As far as updated GUI's for this sort of thing- steal from Omnisphere!
Spectrasonics has it down as far as taking a lot of control possibilities and making them accessible but not intimidating.
MOTU could take the GUI of the Pattern Gate and expand on it.
So when you'd call up the MIDI Transpose, Aprpeggiator, etc plug-in you would see something like this:
