I know there is a sequencer (wolfs), but I have always wanted a 16 or 32 step programmable arp. With filter settings, etc.
If there is one already, please point me in the direction as I havent found one. If not maybe some kind soul with more dsps than I can create one?
Programmable Arp.
Have you seen alfonso's MIDI Rythmers (Riff and Arpeggio MIDI note Generators)? There's no ControlSequencer in the patches afaik, but that's easy to add... Should come quite close 

more has been done with less
https://soundcloud.com/at0m-studio
https://soundcloud.com/at0m-studio