Good question. The original plan was to work with DPOS which is like Ripple but breaks some of the centralization with POS like. After discussions with HunterMinerCrafter we consider moving to plain POW. Please see above more about this subject.
Would you (and possibly HunterMinerCrafter) be interested in joining a voice conference session with the top minds and developers behind DPOS for an intelligent discussion on the right consensus model for Zennet? I can have this arranged.