Before I begin, if you haven't seen our notes from the class discussion Dev Panel at the Worldwide Invitational, you should go take a look. Skip down to the Priest section, look it over, and come on back. I'll wait here for you, okay? Okay, go. Are you back now? Good.
We knew of the existence of the three spells Chilton discussed for quite awhile now, but the confirmation is nice, especially since there's no need to dance around the 'it might not be real, oh no' bit. The three spells I refer to are Divine Hymn, Guardian Spirit, and Dispersion. The stated goal of these abilities is to solidify the role of the current Priest specs. I can definitely agree with that on the part of Divine Hymn and Guardian Spirit, but not so much Dispersion. That doesn't mean Dispersion is a bad ability for what it does, it just doesn't reinforce the role of a Shadow Priest necessarily.