You only bring enough Hunters for Tranq shot rotations as it is NOW.
What you SHOULD be asking is “But where will all the Warriors go?”
Very few changes would be need to be made to most of the classes themselves and most of the issue has to do with Itemization, especially for Enhancement Shaman which is what I’m going to talk about here.
There are any number of ways to go about making Enhancement Shaman more viable without drastically affecting their output in PvP.
We’re going to assume that Enhancement is intended to be DPS, I’m going to keep this as brief as possible despite the fact that I could go on at length about this…
Change the debuff to a self buff that significantly lowers the mana cost of Shock Spells. Maybe Totems too if its needed.
Talents and Abilities
Remove the Tanking talents from Enhancement and make Two Handed Axes and Maces trainable by default.
Parry and Toughness need to be replaced, Anticipation could stand to be something better as well. Toughness provides very little additional mitigation to the Mail wearing Shaman and is of almost negligible value and other classes that get Parry get it for free at levels 6, 8 and 12. I would rather simply have a more appropriate talent for my role and forego ever getting Parry at all.
Class sets shouldn’t be itemized for a particular function to the exclusion of others, this goes for all classes, not just the ones that are suffering.
The token system worked fine, but barring that, just turn Tiered set piece drops into a an item that allows the player to choose a piece that would be appropriately itemized for whatever they want…
Better than all this, just gravitate the true hybrids toward what they were in TBC, it’s already proven effective and it didn’t ruin the game.