Priests are set to get a hotfix that will allow them to wear the Gladiator shoulder and head armor pieces.

Blue poster Tseric announced on the WoW Forums a little hotfix that should correct the ability grants of the Gladiator's Satin Hood and the Gladiator's Satin Mantle. Heads up, Priests!

It was discovered that these two items only granted pure healing capabilities rather than a combination of damage and healing bonuses. Even though he claimed this was only discovered at the Public Test Realm, the fix may be applied to active realms. This hasn't been confirmed yet, however.