What im hoping for

[Warbreed]

If you look at things from other MMOS more so on the lines of EQ:

Paladins have more usefulness than just heals, they have unique buffs for hp, stun spells and undead damage spells to make them stand out. Overall group beneficial tank when played well.

Dread knight aka shadow knight is your polar opposite of the palading using fear, debuffs and lifedrains to win the day. Overall can be a slightly more offenive styled tank.

For Inquisitor, thinking along the same lines as above, should be a combination of mind and body. I see the class as a crowd control type with possibly short duration pets, buffs and possbily forms of Damage over time that interupst spell casting. And to keep him from being overpowered keep all those things liked to his mond pool much like the psi caster. I just want astral form hehehe