According to MMO-Champ. Kalgan said that they will be doing away with the spell damage stat in gear for the future. Instead of +healing or +spell damage, the bonus damage will be derived from talents and something else that they will be using to replace the current caster stats.
Will spirit finally mean something to all casters??
I can't wait to find out. Itemnization has always been playing a nasty game with us. Hopefully there is some nice balance in the expac.