In Legion, we're taking a strong look at how well individual specs meet up to the given fantasy of their intended design which is, perhaps, the most exciting feature for many long-time players. So I'm making a thread in each class forum to invite people to share their ideal visions for each Spec.
Try not to focus too much on balance-QQ unless it's somehow relevant to the fantasy (and no, "I always fantasized I'd be viable" doesn't count), instead, try to focus on whether you feel your spec meets up to the hype or whether it lacks (or has) a strong fantasy to begin with; are you happy with aspects such as cooldowns and abilities and how they represent those ideas? Finally, would you like to see the fantasy changed or modified in a world where drastic re-designs aren't off the table?
Are you happy with them switching the focus of Discipline to an Atonement DPS-Healing Hybrid? What do you feel will make that feel good and exciting as a play-style that, in the past, has been largely on auto-pilot? Holy is often lamented as the eternal underdog of the Healing specs, do you feel it meets up to the design of the supposed "quintessential pure healer class" and where, if anywhere, does Chakra fit into that? Shadow are intended to get a significant overhaul in Legion with it being likely Shadow Orbs are going away so what's the fantasy behind Shadow for you? Beyond many DoTs, what types of utility and cooldown do you feel is appropriate for the Vampire/Mindtwisting/Shadow muddle?