I've always wanted to see Cover follow the same approach that it did in older Final Fantasy titles, where your character sprite would do a little hop to the front of the character that they were defending and block the attack with a shield. Either that, or I'd like to see something in a similar vein to the HW countdown artwork for PLD, where you pick up a party member and dash to safety.

Either way, Tempered Will could certainly do with a shorter cooldown than it does now. Inner Release offers the same effect and more for double the duration and on a minute shorter cooldown, and WAR has a 15 second gap closer on top of that. I think ultimately, they should just give PLD a gap closer and make Tempered Will into a standard role action, similar to how Arm's Length and Surecast can be situationally slotted in on other roles.