I've been interested with this faction as a hero class since their appearance in the card games. Though I think time magic is the domain of mages on the class level, I still think this could make an interesting hero class if Blizzard decided to go this route. It also benefits them that they fit in the open mail armor slot, and could fill the final full hybrid slot still open.
So here is my brief Timewalker concept. Feedback is always appreciated. This won't be as long as my usual class threads either.
Races: Any race could become a Timewalker, due to Dragonsworn already being established heroes.
Armor: Mail armor AGI/INT
Weapons: 1h Swords, 1h Maces, 1h Axes, 2h Swords, 2h Maces, 2h Axes, Staves
Resource: Temporal Energy and Sands of Time
Starting Level: 55
Starting Location: Caverns of Time, Tanaris
Timewalkers are heroes who swear an oath to the Bronze Dragonflight. In this process, their former skills are removed, and are granted various new abilities to better serve the Dragonflight. Timewalkers would make an excellent hero class due to their history as established heroes and adventurers. This aligns itself well with the Timewalker lore, and with Blizzard's established hero class system. It wouldn't make sense for this class to start at level 1. The Caverns of Time would appear to be the best location for this class to start.
Summon Bronze Dragon: All Timewalkers have the ability to summon a Bronze Dragon to assist them in battle. The Bronze Dragon will last for 45 seconds, and perform a task based on the Timewalker's specialization.
Tank: Bulwark: The Dragon will increase the armor of the Warden, taunt enemies, and blast targets with a stream of fire.
DPS: Destruction: The Dragon will lay waste to enemies with a stream of fire that also reduces their resistance to damage.
Healing: Restoration: The Dragon will unleash flames in an area of effect, that heals allied and harms enemies. This healing/damage works with the Weaver's Expansion ability.
Nozdormu's Presence: (Cooldown) Increases Haste by 20% for x seconds.
Tanking spec. Wardens utilize a variety of time mechanics in order to properly defend their allies as well as the time lines. Wardens use 2h weapons
Temporal Force: (Cooldown) Attacks done to you increase your attack speed by 5% per stack. Stacks up to 10 times. Lasts 12 seconds. At maximum stack, the wings of Nozdormu erupt from the back of the Warden, dealing damage to all targets near the Warden, and increasing the power of its attacks for a brief time.
Onislash: Strikes the target twice, refilling your resource.
Chrono Trigger: Releases temporal energy into a wave of power that damages all enemies in an 8 yard radius and causes threat.
Temporal Rush: The Warden sends a temporal copy of himself rushing forward, dealing arcane damage to all enemies in a line. At the end of the rush, the last enemy struck will be briefly immobilized. While the rush is active, the Warden can teleport himself to his temporal copy.
Time Slip: (Passive) As the Warden attacks opponents, he creates a rift in the timestream, causing a version of himself from an alternate timeline to emerge to assist him in battle. Damage is divided between both versions of the Warden during duration.
Horizon (passive) Your melee attacks have a chance to stop an opponent in time for 3 seconds. Doesn't work on players.
Watchers use their temporal abilities to gather intelligence, spy on any threats to the timestream. They are ranged/melee hybrids, combining magic spells with strong melee abilities.
Temporal Blade: The Watcher fills a blade with temporal energy, and throws it at a target, damaging them over time, and reducing their movement speed. Duration and damage is determined by the amount of temporal energy.
Phase Shift: The Watcher shifts out of visibility, gaining the ability to move at maximum speed through physical units--doing harm to any enemies it passes through.
Time Jump: (cooldown) The Watcher teleports backwards 20 yards, releasing itself from any binds or holds, and restoring whatever HP or temporal energy it had 4 seconds before.
Dragon Slash: The Watcher sweeps their blade around them, inflicting damage to any enemies within 5 yards. The strike also causes flames to project outward from the caster, inflicting damage to any enemies within 10 yards in front of the caster.
Focal Point (3 charges) Fires a ball of arcane energy forward that moves very slowly towards a target. The further the ball is from the Watcher, the less power it will have, but its speed will increase. You can have a maximum of three Focal Points active at once. However, if another FP is active, the other one will not move, and will still in place until the one summoned before hand has reached its target. While stationary, the Focal Point will deal damage and knock back any target that hits it. FP's cooldown will not begin until one of them has hit its target.
Head Start: (cooldown) Instantly reduces the time remaining on all of your cooldowns by 15 seconds.
Weavers use their abilities to heal and protect both the timestream as well as their allies.
Chrono Shield: Envelops a target in temporal bubble for 15 sec. Damage taken while shielded will be healed back over 30 secs. Can be cast on multiple targets.
Slow Time: Envelops a 10 yard area in a field of slower time. Enemy projectiles and enemies caught in the field are slowed. Any damage taken by an ally target is spread over time. Damage over Time is reduced and spread over a much longer period of time.
Expansion: Converts DoTs into HoTs. In addition, extends the duration and intensity of beneficial healing over time abilities and shields, and Damage over time abilities of enemies. (8 second CD)
Wormhole: Teleports a target to your location, healing them and purging them of negative magical effects in the process.
Temporal Rune: The Weaver places a protective time rune on an ally, teleporting the ally back in time if they take lethal damage. Only one Temporal Rune can be placed on a target at a time.
Flames of Nozdormu: The Weaver breathes fire, igniting the target, and burning them with the fires of time. Allies are healed over time, and enemies are damaged over time.
Thanks for reading. Hope you enjoyed a more abbreviated hero concept! Please participate in the poll.