Well, we got it. I never thought I'd see the day, but we finally got the Trial of the Crusader Lightwell that shoots heals at allied players instead of requiring them to click. Holy priests will gain access to the new Lightwell, called Lightspring, using a glyph of the same name. Before you get too excited, however, I should mention that there is a catch. Apparently, automatic Lightwells don't heal for nearly as much as a manual ones do, so depending on the fight and your raid members' ability to use the Lightwell in the first place, you may choose to skip the Glyph of Lightspring now and again.
Good ol' Derevka has already written up a thorough first look at Lightspring in which he points out many of the spell's limitations. In the post, he points out that Lightspring only heals targets at less than 50% of their health, and it has a 5-second cooldown between heals to prevent it from being used as a raid cooldown. To read the rest of Derevka's write-up and see his comparisons on the numerical output of the two spells, head over to Tales of a Priest.