I spitballed some hero talent concepts. Most of these are deliberately OP, and would be added to existing abilities to reduce button bloat.
mage
self heal over time
faster and more mobility
execute damage
warlock
more tankiness
removal of cast times
pet-originated burst
rogue
control that cannot be escaped with trinkets
faster cooldown reset when no nearby combat
ranged attack that doesnt break stealth
hunter
all pet appearances can have any properties
higher penalties for escaping traps
melee burst attacks including dual wield
shaman
ye olde backpack totem or 2 property totem
earth melding (invincibility)
air elemental pet (permanent ghost wolf speed and minimum speed)
evoker
always-on move while casting
short cooldown on dracthyr racials
breath attacks now have 5 properties, dot, hot, root, knockback, and stasis, must be preselected, but changeable in combat on medium cooldown
priest
overheals increase the targets stats
attacking the priest (or the priests heal target) debuffs the attacker
priest attack spells are not interruptable and can’t be locked out
druid
broccolis that taunt and heal
insect form that can fly indoors and can cast CC including new entangle forms, only available in combat
Heart of the Wild, permanent and stronger
monk
leap to friendly target
a knockup that is also a stun, with followup attacks from existing abilities
zen meditation powerup, full mobility during, and aoe damage after completion
paladin
autoapplication of a weak dot when near enemies in combat
multitarget combat res or soulstone equivalent
temporary steed pet with its own aura
warrior
light ranged attacks
higher rage pool, pooling rage gives inhernet immunities
all stuns and fears are now knockdowns and cannot be trinketed
DH
ZOOOM
SWOOOSH
RARRGH
more seriously, at some point you guys need to add a sigil spec, with lots of on-ground aoe abilities. No ideas yet.
DK
Short cooldown toggleable wraith form that moves faster and changes abilities to much weaker range attacks
Ghouls appear more frequently and have more properties, can appear from any corpse
Chains of Ice is now applied passively from specific abilities