I actually have been thinking ideas up along these lines too. Having Empire/Fort both dissolve tribunal, and involving cities in cabal wars. Empire would have Hamsah to police, and Fort would have Voralian. Possibly with the other cities capable of switching to the control of whichever faction is in power. Fort becomming a Monarchy and Empire a... empire. Meh, suppose would require a bit more in depth thought than that, but as it stand now, I think Jormyr is onto something, in that Tribunal has always seemed like to me it should lean neutral/good in align, and Empire evil obviously. Having evil vindicators and magistrates working alongside goodies just seems difficult to roleplay.