Proc based weapon enchants for healers?

Well, maybe.. Ghostcrawler responded to this question in a recent discussion:

Quote from: Ghostcrawler

We recognize that weapon enchants (and even weapons in general) aren’t as exciting for casters and healers specifically as they are for melee. Procs are certainly one way to address that problem, and it’s something we’re taking a hard look at. As several players have pointed out though, they aren’t trivial to design. Proc’ing damage is generally useful for a damage-dealer. Proc’ing a heal is unreliable at best and often just wasted.

(Source)