Turn Undead(Rank 3):This spell has been reworked and has been renamed to “Turn Evil”. It will now work on Demons in addition to Undead. Turn Evil is subject to diminishing returns, and lasts 10 seconds in PvP.
No doubt locks will be shaking their fists and stamping their feet at the news, but this is effectively the buff I've been asking for with shackle undead.
I'll be petitioning Blizzard to see if they'll share some of the love with priests. Watch this space.
Edit: here's the thread. Go comment!