The only sensible proposals I can see here are the CD reduction for Tempered Will (60-90s would be fine) and Bulwark (2m to make it always pair up with Awareness).

I agree that PLD's gauge is boring but tying it into other job elements would bring more problems than it would fix, and gating utility behind tank or DPS stances will only make things uncomfortable for a toolkit that is already pretty stiff in its rotation.