Legendary Items for Casters?

If you saw this earlier post on legendary items, you may have noticed something odd about them – they're all designed for melee characters.  While I sometimes wonder if this isn't a good thing – it means casters do not feel compelled to go through the long and arduous process of obtaining a legendary item – community manager Eyonix has made a post in the official forums suggesting that we will be seeing legendary items for casters at some point in the future.  We'd like time-line, please, Eyonix!