about the state of Elemental Shamans mobility in PvP

Many questions have been brought up about the state of Elemental Shamans mobility in PvP.

Such as: the loss of po world of Warcraft Astral Shift, to the gain of Earthquake (useless with the mana cost), Fulmination (lightning shield charges), Spirit Walkers Grace (silenced, interrupted, dispelled, snared), and even Stoneclaw Totem (not scaling with spell power).

Simply put:
With the severe lack of Elemental Shamans in arenas, are there any plans to allow them to be more viable for PvP in the future?