Shamans in PTR 4.1

[Vitandus]

Fire Nova has been redesigned and decoupled from shaman Fire totems. Instead, it now pulses that same area-of-effect from each target that is afflicted by the shaman's own Flame Shock debuff. It now damages all enemies except the target hit by Flame Shock. The ability's cooldown has been reduced from 4 seconds, down from 10.
Magma Totem now lasts for 60 seconds, up from 21.
Stoneclaw Totem's area-of-effect threat pulse no longer affects critters.

Elemental Combat
Earthquake is no longer a channeled spell. It now has a 2-second cast time, lasts for 10 seconds, and has a 10-second cooldown. Its damage has been reduced by 40% from its channeled version.

Enhancement
Improved Fire Nova has been redesigned and replaced by a talent called Seasoned Winds. When an enemy spell cast is successfully prevented with Wind Shear or Grounding Totem, the shaman gains magical resistance (in an amount equal to what a protection totem/aura would grant, stacking with such buffs) to the spell school(s) of the interrupted spell (except for Holy spells), lasting 10 seconds.