Patch 5.3!

New scenarios
New pets
New weekly
New pet
Dungeon set gear
Lesser charms and DS1 pieces from mobs
New Battleground - Deepwind Gorge
Loot specializations
Massive PvP changes
Everyone gets 65% resilience
PvP Power gem stats cut in half
iLvl 522 PvE gear makes Tyr gear irrelevant
All gear scaled to 496 IN BGs
Old school raid changes
Voidbringers are back

Mike:

AV weekend meant lots of wins, at the beginning.
Full HP gear, 2 pieces of Tyr gear
The Hordebreaker
Debating on what to do about this whole WPvP issue

Eric:

Darkspear Revolutionary
farming in Barrens
new helm 489
Heroic Scenario Tanking
Finished LFR