Well after perusing some forums and checking out MMO-Champion and World of Raids it seems the major news of the day is this quote by Tom Chilton (Kalgan):
PC Gamer: What else is changing?
Tom Chilton (Kalgan) : We’re also going to be doing away with spell-damage only type gear. We’ll be moving to a system that, as part of your talents, will let players convert healing into spell-damage and vice-versa as part of their talents. That way they can use the exact same gear, but their talents just adapt what it does.”
Now what that statement means is up to debate though if you take it literally it sounds like Blizzard is going to do away with spell damage specific or healing specific system and more of homogenized system that allows a player through talents to enhance their spell damage or healing.