Also, if we are talking about design ideas for new tanks. I don't know much of what has been in Final Fantasy games previously, only what is currently present. I feel if they had a Tank class/job focused on the opposite of what a Paladin is centered around, but benefiting from doing the opposite. Like for the WAR if they choose to not mitigate damage they tend to do more dps, but at the cost of taking more damage, so what if we had a Tank class that actually benefited from not using buffs.

So, the more damage the Tank received without mitigating any of it, the more bonus DPS they would receive. The Tank class/job would have to find a balance in taking damage to boost their dps and switching to taking damage to boost their ability to mitigate damage. It sounds similar to what we have currently, but it is still different than both the WAR/PLD tanks currently.