Generally, Prot Wars have little to no in-battle health recuperation (excluding health pots, warlock stones, or the temporary boost from last stand). This means that we start the fight and are at the mercy of killing something before our mitigation/avoidance allows the mob(s) to kill us. Some class-specific ability to heal some health would be nice. Maybe some type of kit we could 'craft' outside of combat, to use in-combat.
If you wanna heal yourself in battle, try rolling a Pally. I have seen a bunch of people asking for things like [Shield Throw] and some kind of self-heals. These are things a PALLY does. IF Blizz gives Warriors these things, then they will be like Pallies.