As part of unit design, will we be able to give units special abilities in addition to equipment? Examples: Cause Fear; Inspire other units; Resist Magic; Flight; Regenerate; etc. Certainly it would take longer, but this seems like a good way to make variety in the units.
It could require an item to do this, or maybe be part of the research tree? Again, if it could be part of Unit design, it would vastly increase the variety of units if you could give them more than just equipment/stats.