Not really, I, like, most of the WOW population have no interest in heroic Garrosh. Have you not heard they are planning on doing exactly that? Sounds like a plan butt why stop at 13 bosses?
These are the latest balance fixes;
Death Knight (Forums / Skills / Talent Calculator)
Frost
Icy Talons now increases melee attack speed by 45% (up from 30%).
Unholy
Unholy Might now increases Strength by 35% (up from 25%).
Hunter (Forums / Skills / Talent Calculator)
General
Aspect of the Hawk now increases ranged attack power by 35% (up from 25%).
Talents
Aspect of the Iron Hawk now increases ranged attack power by 35% (up from 25%).
Shaman (Forums / Skills / Talent Calculator)
Elemental
Elemental Focus now increases spell damage done by 20% (up from 15%).
They look exactly like altering a number or two to me.