Hoping:
Healers all receive much needed TLC and have more interesting downtime DPS options. Removal of bloated oGCD heals so there's slightly more of a focus on all of the healers needing to use their GCD heal kit.
Moving away from the boring 120s burst window

Expectations:
7.0 will be ShB 3.0 in terms of gameplay and jobs will get very little changes, most DPS jobs will get a "finisher" added onto their rotation at level 99/100 that is merged with a button they already have.
They will randomly pick a DPS job that had little to no complaints (probably SAM or NIN) and completely rework it, alienating all of the former mains and making people wonder why they even bothered. The devs will ignore the outcry.
Every job will get easier.
SMN will only get 1 summon that plays almost exactly like one of its current summons does.