The 2.2 patch has been loaded in PTR. Unfortunately, the retribution paladins will have to wait until the next patch to get buffed.
Here is the list of changes pertaining to the Paladin class.
Blessing of Freedom cooldown increased to 25 seconds.
Blessing of Protection: This spell can no longer be cast on others when stunned. It can only be cast on self (to break the stun) under those circumstances.
Blessing of Kings, Light, Might, Salvation, Sanctuary and Wisdom increased to 10 minutes.
Blessing of Sacrifice now has a 1-minute cooldown.
Consecration will now properly hit large creatures.
Greater Blessing of Kings, Light, Might, Salvation, Sanctuary and Wisdom increased to 30 minutes.
Guardian’s Favor now increases duration of Blessing of Freedom by 2/4 seconds.
Eye for an Eye: This ability can now trigger while the Paladin is sitting.
Hammer of Wrath cast time reduced to .5 seconds, global cooldown reduced to .5 seconds.
Illumination: Paladins will now correctly gain mana from this ability if they sit down to drink right after a healing crit, and receiving mana from this ability will no longer cause a Paladin who is sitting to stand up.
Judgement: The Judgement spells will no longer cause triggered effects to go off twice.
Redoubt: This ability can now trigger while the Paladin is sitting.
Reckoning: This ability can now trigger while the Paladin is sitting.
Righteous Defense: In some cases this ability would fail to work properly when the Paladin casting it had just been crowd controlled by a creature. That is now fixed.
Seal of Righteousness: The tooltip for this ability has been improved. It now displays a different number for one-handed weapons and two-handed weapons, and adjusts to the speed of your current weapon. It displays a single number, rather than a range of numbers for different handedness and speeds.
Seal of Vengeance: The damage from this ability will now stack properly when two different characters are applying Seal of Vengeance effects to a target.
Seal of Vengeance duration increased to 15 seconds. In addition, when Seal of Vengeance strikes a target that already has 5 applications you will cause instant Holy damage.