Undocumented changes

Shaman (Skills List / Talent + Glyph Calc.)

Spirit Weapons now decrease the threat on all attacks by 30% (Old - Only Melee attacks)
Enhancement

Nature Resistance Totem, Stoneskin Totem, Fire Resistance Totem, Frost Resistance Totem, Strength of Earth Totem, Flametongue Totem, Wrath of Air Totem, Windfury Totem descriptions have been changed to reflect the latest changes, they now affects all raid members.
Earthen Power now also make you and nearby friendly targets immune to snare effects for 5 sec when it pulses.
Restoration

Healing Stream Totem range increased from 20 to 30 yards.
Mana Spring Totem now restores 91 mana every 5 seconds at max rank. (Old - 34 mana every 2 seconds)
Nature's Swiftness changed to - When activated, your next Nature spell with a base casting time less than 10 sec. becomes an instant cast spell. Nature's Swiftness shares a cooldown with Elemental Mastery.
Restorative Totems now Increases the effect of your Mana Spring and Healing Stream Totems by 4/8/12/16/20%. (Down from 5/10/15/20/25%)
Healing Grace has been moved from Tier 3 to Tier 2.
Ancestral Healing has been moved from Tier 2 to Tier 3.
Elemental

Thunderstorm is now useable while stunned.
Lava Flows now Iincreases the critical strike damage bonus of your Lava Burst spell by an additional 6/12/24%, and when your Flame Shock is dispelled your spell casting speed is increased by 10/20/30% for 6 sec.
Lightning Overload changed from 5 to 3 ranks, now Gives your Lightning Bolt and Chain Lightning spells a 7/14/20% (Up from 4/8/12/16/20%) chance to cast a second, similar spell on the same target at no additional cost that causes half damage and no threat.
Elemental Mastery has been changed to - When activated, your next Lightning Bolt, Chain Lightning or Lava Burst spell becomes an instant cast spell. In addition, your Fire, Frost, and Nature damage spells a 20% increased critical strike chance for 15 sec. Elemental Mastery shares a cooldown with Nature's Swiftness. Instant, 3 min cooldown
Storm, Earth, and Fire changed toReduces the cooldown of your Chain Lightning spell by .75 sec (on all ranks, down from 0.75/1/2.5sec), your Earthbind Totem also has a 33/66/100% chance to root targets for 5 sec when cast and the periodic damage done by your Flame Shock is increased by 20%.
Elemental Reach now also increases the range of your Flame Shock by 7/15 yards.
Glyphs

Glyph of Totem of Wrath -- When you cast Totem of Wrath, you gain 30% of the totem's bonus spell power for 5 min. (Old - until cancelled)

Hmmm.
Well the Spirit weapons change was in before..... But now as then its really nice.
Tooltip changes to totems.. big whoop.
Snare immunity to Earthen Power is nice for PvP

Underwhelming changes for Enhancement.

Resto changes... the increased range on Healing Stream is good.
The change to Mana Stream is a very slight buff, adding 6 MP% but coming in less often offsets some of that gain IMO especially talented as its only 3 more mp5 with that nerf.

No idea behind the reason for the Talent Tier Swapping.

Not sure at the Elemental changes. Some nice buffs in there. Elemental Mastery has now become a Better Natures Swiftness rather than a sure Crit. Seems like a PvE buff.
S,O,&F seems to gain some utility.
Elemental Reach change is very welcome I'm sure. Flame Shock is part of the rotation and having to be within 20 yards is not good as elemental.