Instead of a heroic class, I think they should make a heroic spec for each of the core classes.  Although they are Hero Specs for each class, I think they should be balanced with the other trees.  Hero Spec will have more of a 'title' as a name, would give passives that change aspects of the class and even change the way some abilities would work normally.  I wanted to fill in some much needed roles and perhaps even add a buffer class to the trinity.

I feel that tank and healer should be more flexible.  Instead of just 1 person preforming the role they could have two semi-tanks or healers.  This would make players more comfortable accepting the new roles to some of the classic property.

Druid

Balance | Feral | Restoration | Druid of the Wild

Druid of the Wild - I was thinking something that they could do in their humanoid form, would allow them to use a ranged weapon and perform off-tank, off-heals, buffer or physical ranged dps.  I connected it roughly to the Druids of the Wild lore although basically all playable druids are 'of the wild'.  Could change it from that to just Peacekeeper, make it a physical ranged buffer class.

Other Suggestions

Druid of the Fang - They once meant well trying to heal the barrens but was corrupted.  Perhaps they can come back and give druids a snake form although they would be fighting for melee dps with cat form.

Druid of the Flame - Druids that use fire magic and have a flame cat and flame scorpion.  This tree can mimic Feral tree by providing both dps and tanking talents but changing bear into scorpion and cat into flame cat.

Druid of the * - Worgen was created by the Druids of the Scythe.  They transformed into a pack form, which was a wolf and eventually they lost their minds and became worgen.  I was thinking that we could do something similar and give druids a human-cat form.  While in this cat form they can use weapons (and ranged weapons).

Hunter

Beast Mastery | Marksmanship | Survival | Primalist

Primalist - Hunters I wanted to go either melee, similar to white lion class from warhammer or maybe something that turns them into an animal (or pet - below).  I listed Primal first although I'm not sure it fits at all, it is interesting though.  Warriors that appear bestial but that means a new model for each of the races.  This tree could focus on off-tank, tank or melee dps.

Other Suggestions

Beast - This one I'm thinking would put the hunter in control of his pet while his hunter avatar will perform like a ranged pet.  If this was to work, these playable beasts should have their own armor and can live after their hunter avatar has died.  I feel this is kind of close to beast mastery but also I'm thinking that if marksman and survival already involved ranged combat that a second spec could be dedicated to the pet aspect.  This tree could focus on off-tank, tank or melee dps.

Mage

Arcane | Fire | Frost | Warmage

Warmage - Able to equip a 2h staff in one hand and a sword in off hand.  This would be a mage with melee abilities, I love this and it was my inspiration behind this idea.  They could provide melee/ranged dps, off-tank.

Paladin

Holy | Protection | Retribution | Exemplar

Exemplar - They already have dps, heals and tank.  The Exemplar would be a buffer class that used a banner, the paladin auras would be replaced with banners that function in similar ways.  A buffer class could even be used to help a weak healer/tank preform their roll.

Other Suggestions

Part of me wants to see an ex-paladin like class, not really turned away from the light but more like moved beyond it.  Make it ranged magic damage (although I would like to see holy spec be duel for heals or damage - similar to the druid feral tree).

Priest

Discipline | Holy | Shadow | Monk

Monk - Give us a way to get a monk without having to add a whole new class.  They could be melee dps, off-tank, tank, or buffer.

Rogue

Assassination | Combat | Subtlety | Sapper

Sapper - Explosives... and maybe some ranged abilities w/ranged auto shoot or auto throw.

Other Suggestions

Would like to see a tank like class although I think combat would be better suited for it.  I'm also wanting to add a ranged option as well.

Shaman

Elemental | Enhancement | Restoration | Spirit Wolf

Spirit Wolf - This name is not complete.  My thoughts behind this spec would be a spirit wolf form that would allow them to tank.  I am still reading and pondering other options for the shaman.

Warlock

Affliction | Demonology | Destruction | Witch Doctor

Witch Doctor -  Ooo eee, ooo ah ah ting tang.... ?Iconic Class, I was thinking they could borrow a little from Diablo.  Make it a off-healing, healing class that slings vials of potions at enemies.

Warrior

Arms | Fury | Protection | Demon Hunter

Demon Hunter -  This was my original thought for the hunters but it seemed it fit warriors better.  There is a lot of lore attached to this class and we may not be able to bend it that way but I wanted to post something a little unusual.  With this we can add some magic damage to warriors.

Other Suggestions

Gladitor / Blademaster - Direct mirror classes (just renamed abilities and tree name for alliance and horde).  Most of the traits from these classes has already been added into the warrior (and other) classes.

Magical Warrior - Got to love that name, the only thing they are missing is some type of magic arsenal.  I'm still reading up on the lore to see if i can find something for this spot.

Death Knight

Blood | Frost | Unholy | Runemaster

Runemaster -  Although the monk and runemaster classes are related, I'm thinking they could be fleshed out a little more giving them their own distinct style.  Runemasters could use staffs, maybe a mixture of ranged spells and melee attacks performing as off-tank, off-healing.