Hello,
With the non-existence of (meaningful) Hunter party/raid utility and over-abundance of Evoker party/raid utility, the solution might be simple: move the movement-oriented utility to Hunters, where it also makes a lot of lore/fantasy sense.
So what could the result look like - what would Hunters get and what would Evokers keep, including Augmentation as a special case …
Hunter party/raid utility (movement):
- party-wide small movement speed aura (~ Bronze Attunement)
- party-wide temporary speed buff on Disengage (~ Aspect’s Favor)
- raid-wide extra charge of a movement ability (~ Time Spiral) OR raid-wide movement speed increase (group Aspect of the Cheetah)
- x-nearest-allies casting while moving (~ Spatial Paradox)
As simple as that, cohesive movement utility.
And, for the full picture, moving beyond the movement utility …
Hunter party/raid utility (other):
- enemy damage received debuff … but not via Hunter’s Mark
- raid-wide leech buff
… still leaving a plenty of valuable utility for Evokers in general and Augmentation Evokers …
Evoker party/raid utility:
- Rescue (+ absorption talent (Twin Guardian))
- Source of Magic (+ healing/damage increase talent (Potent Mana))
- Zephyr (incl. movement buff)
- other mentions: Oppressing Roar, being a hybrid class
Augmentation Evoker party/raid utility:
- Black Attunement (+ temporary health increase talent (Aspect’s Favor))
- Blistering Scales (+ absorption talent (Molten Blood))
- Chrono Ward (absorption from Breath of Eons)
- Bestow Weyrnstone (teleportation)
- other mentions: Timelessness (threat reduction), Symbiotic Bloom (healing received increase talent), Motes of Possibility (cooldown reduction), Inferno’s Blessing (chance on extra damage), Fate Mirror (chance on extra damage)
I can imagine such a world 
Happy new year to all! 