I would like to start off with saying I LOVED scholar's dps kit in HW. And I know a lot of people mention bringing dots back and such, but I don't think I would want exactly the old stuff just readded due to how bloated my hotbars are now. I think I'd want something inspired by SMN's whole spell replacement mechanic. Perhaps after using Energy Drain, it gives a couple stacks of a resource to use an upgraded Broil/Biolysis/Art of War. Biolysis could be upgraded into another unique DoT. Broil could also give another unique dot, or perhaps a very small defense debuff on the target. Art of War could be upgraded into an aoe defense debuff or become an aoe DoT. Also I'd love for Energy Drain to finally do aoe damage even if it has falloff. And remove the aetherflow cost from Energy Drain and turn it (preferably) into a charged action.
Next is something I wouldn't expect until a new expansion, but I'd enjoy a different approach to Dissipation. I'd like to keep the whole "eat your fairy" mechanic but have it visually and mechanically enhance the Scholar. Our DPS kit and healing kit would use a lot of fairy-themed animations. Potencies would be increased, obviously an increase to oGCD healing abilities. I don't have anything too specific in mind, but it'd be nice to see party buffs be involved somehow. Maybe a dissipation-enhanced Biolysis goes from being a DoT to a short aoe attack buff that needs to be kept up (maybe recasted after every 2-4 broils or something). And aetherflow used during Dissipation would also add to fey gauge for once.
For me, this would cater towards my love of the old DoT healer Scholar used to be. And with Sage being White Mage's parallel as the selfish dps healer, I think these changes would properly make Scholar Astrologian's parallel as the supportive healer. Because using Chain Stratagem once every 2 minutes isn't doing it for me, and I don't think I'd be much happier with charges or a shorter recast time. And obviously, assume all of these potencies would be rebalanced to acceptable levels. :^)