Having a knowledge of priests above other classes, I'll make a few comments:
The following skills I have never heard of:
Fear Ward (NYI)
Shadowguard (this would be nice though!)
The following skills I have never heard of, and don't sound like they belong to the priest:
Hex of Weakness (warlock)
Touch of Weakness (warlock)
Devouring Plague (warlock)
Feedback (dunno what it even is)
As to whether or not these are not yet implemented, for most of them I doubt it. My main reason for this is that none of them are above level 20, and I know the thrust right now of Blizzard with new abilities is to give players some new skills that they acquire past level 30.
Edit: actually, I have to take some of that back. Blizzard did say when they implement priest class quests, that they would grant race-specific abilities. That could very well be what some of these are. Elune's Grace would obviously be a Night Elf spell. The warlock-sounding ones could be for undead.
Edited, Sat Oct 2 12:29:32 2004 by Azuarc
Only the exceptions can be exceptional.