We’ve been toying with a change to Divine Storm to make it more like Fan of Knives. Specifically, you could use it whenever you want, for mana, but it would share a cooldown with Crusader Strike. It would have nothing to do with Holy Power (unless Divine Purpose still applied). The idea would be that sometimes you’re okay giving up the single target rotation of Crusader Strike -> Templar’s Verdict in return for being able to use an AE attack every 4.5 to 3 sec. It’s too early yet to know if this design will work out.

Divine Storm has a great visual and many long-time Ret paladins have a soft spot for it, so we’d like to get it back to more common use. (Source)