All healers will gain new actions that apply single-target buffs — what that will actually mean remains to be seen, and Media Tour is likely to give us our first real look at these in context of an existing toolkit.
But that makes effective streaming harder.
There is an improved ground targeting reticule, which allows you the option to press the action button again once the circle is placed to cast while preventing the circle from being moved outside of the range of the action being used, which should prevent backtracking to cast something due to overaggressive targeting.
Tanks remain an open question and will likely stay that way until Media Tour.
Two things cannot be in one place.