Since the Devs have already said that they can't decide on how to advance on healers anymore, its very likely that we'll only receive Trait upgrades from 7.0 onwards.
An extra charge here, a CD reduction there, a animation upgrade to our skills with 10 whole potency to show for it.
We'll see a change to Assize someday, whether that's a 2nd charge remains to be seen and only assuming they don't remove it and give it back to us as a "new" skill like they've done in the past.