We’ve been hard at work at Patch 1.10 and I’m excited to bring you a small sneak preview of some of the content. We’ll be offering a series of quests for maximum level players so they can obtain a really good, class-specific armor set. This should prove to be a great way for non-raiding players to upgrade their gear. Here are some highlights:

• Characters follow a new quest line to obtain an armor set
• The armor sets contain 4 rare and 4 epic pieces
• Some of the pieces can be obtained by soloing (including one of the epic pieces)
• The most difficult pieces to obtain require a UBRS level group
• We are adding new bosses to existing dungeons
• Some of the existing dungeons are being re-itemized

For Clarification, this is quoted from here (Wow Forums)

Small Update from Tigole

To clarify one point:

Not all of the dungeons are getting *completely* re-itemized. What we’ve been doing is going through some of the higher end dungeons and removing or replacing egregious drops, upgrading existing items or changing drop percentages. For example, there are many Green items in Blackrock Depths that will be removed, replaced or upgraded with blue items. To give another example, Magister Boots will become easier to obtain, as they are being moved off of the Postmaster and into a new, more traveled location.

Paladin Set

One Piece Known:

Soulforge Helm (epic)
Soulbound
Head (Plate)
556 Armor
+16 Strength
+17 Stamina
+17 Intellect
+12 Spirit
Durability 100/100
Equip: Increases damage and healing done by magical spells and effects by up to 14.
Equip: Increases your chance to get a critical strike by 1%.

Set Bonuses: (8 Piece Set)
(3) Set: +50 Armor.
(5) Set: Increases damage and Healing done by magical spells and effects by up to 12.
(6) Set: +6 All Resistances.
( Set: Chance on melee attack to increase your damage and healing by up to 140 for 10 sec.

Source: 1up.com

Warrior Set

One piece known:

Breastplate of Heroism (Epic)
Soulbound
Chest (Plate)
684 Armor
+21 Strength
+13 Agility
+26 Stamina
Durability 165/165
Equip: Increases chance to hit by 1%

Set Bonuses (8 Piece Set)
(3) Set: +50 Armor.
(5) Set: +20 Attack Power
(6) Set: Increases your chance to get a critical strike by 1%.
(7) Set: Increases your chance to parry an attack by 1%.
( Set: Chance on melee attack to heal you for 88 to 132.

Source: 1up.com

Warlock Set

One Piece Known:

Deathmist Wraps (Epic)
Soulbound
Hands (cloth)
54 Armor
+15 Stamina
+12 Intellect
Durability 35/35
Equip: Improves your chance to hit with spells by 1%.
Equip: Improves your chance to get a critical strike with spells by 1%.

Set Bonuses (8 Piece Set)
(2) Set: Increases damage and healing done by magical spells and effects by up to 23.
(4) Set: +8 All Resistances
(6) Set: When struck in combat, there is a 2% chance your attacker will flee in terror from you at a reduced movement speed.
( Set: +200 Armor

http://1up.com/media?id=2661832&type=lg
http://1up.com/media?id=2661831&type=lg
http://1up.com/media?id=2661830&type=lg