[Suicide Junkie]

The active armors are next up in tech after passives.
They can't really be organic armor regen, since that would interfere with the combat repairs for B5 gold.
Instead, these could be given the armor ability (since they heal over any holes).
Or, they could be internalized crystalline effects, like grav deflectors and whatnot

For the ancient race armors, they would be given high-power organic armor with crystalline effects as well. Internal damage to repairable systems would turn into a One-Round stun effect, since the OA ability would heal them on the next turn.
Shadows would get more emissive/crystalline, Vorlons would get more organic.