Righteous Defense lays out an intriguing argument for an idea that I still personally can't get behind: paladin stances. The recent changes around patch 3.3 have shined a light on paladin versatility, and basically, paladins are forced to pay the hybrid tax three times over -- because they can do it all without limiting themselves, they can't do anything as well as other classes. So RD makes the suggestion: instead of letting paladins have all of their spells under any aura, it's time to narrow things down a bit. Devotion Aura becomes tanking stance, gets Righteous Fury's threat bonus added to it, and enabling it makes pallies lose some other abilities (Avenger's Shield is RD's suggestion). Retribution Aura becomes a DPS "stance," with added benefits and costs, and so on. By forcing paladins into a playstyle, you can give them extra power, because you've taken away versatility.
Unfortunately for those in favor, I don't think it'll ever happen. First of all, we already have a class in the game that uses stances, and I think that this type of gameplay is too close for Blizzard's comfort to implement in the same way on paladins -- they want the classes to play different. Second, the paladin class design has always focused on the versatility of being a hybrid. While paladins may want to limit themselves to see buffs, Blizzard has never shown an inclination to limit pallies' versatility just to make them more powerful. I like the idea of Righteous Fury's buff getting linked up to something else (it definitely seems like it's out there on its own as an arbitrary tanking buff), but paladins getting a fully implemented stance system doesn't seem likely at all.