I don’t have a lot of time to comment on these changes at the moment, but here they are, from mmo-champion.

All paladins auras had their range extended from 30 yards to 40 yards.
Holy

• Sacred Shield now cannot be on more than one target at any one time.
• Infusion of Light no longer has a chance to reduce the casting time of Holy Light, but increases the the critical chance of your next Holy Light by 10/20% instead.

Protection

• Hand of Sacrifice now lasts 12 sec or until the caster has transfered 100% of their maximum health.
• Targets affected by Divine Shield, Hand of Protection or Divine Protection can no longer be affected by any of these spell for 2 minutes. (Down from 3 minutes)
• Divine Sacrifice *New Talent* (Tier 3) – 30% of all damage taken by party or raid members within 30 yards is redirected to the Paladin (up to a maximum of 150% of the Paladin’s health). Instant, 2 min cooldown.

Edit: There is a badass new tanking enchant coming down the pike as well -

Enchanting

• Enchant Weapon – Blade Ward *New Enchant* – Permanently enchants a weapon to sometimes grant Blade Warding when striking an enemy. Blade Warding increases your parry rating by 200 and inflicts 600 to 800 damage on your next parry. Effect can stack up to 5 times and lasts 10 sec. This enchantment requires the wielder is at least level 75.