I would of course love to have tooltips for most items you suggest! I'd prefer the base stats to stay text though, but that's just me. For auras, there is currently not a gameplay distinction between 'passive' or 'active' auras. The only distinctions we currently have are: ranged, global, formation, and garrisoned auras. And yes, such an aura is best as a Formation effect, but those only exist in 1 mod, not the base game or DE.