Blizz confirmed the following changes to the Mage class in the 2.3.2 patch which goes live on the PTR today.
Quote from: BlizzardThe following changes are planned for Mages in the next patch, 2.3.2, which we hope will go up on the PTR quite soon:
* Cold Snap (Frost) has had its cooldown reduced and is now in the Ice Block position in the talent tree. This ability will no longer reset the cooldown on Fire Ward.
* Icy Veins (NEW Frost Talent) decreases casting time of all spells by 20% and increases the chance your chilling effects will freeze the target by 25%. It lasts 20 seconds and has a 3 minute cooldown. It is now in the Cold Snap position in the talent tree.
* Conjure Mana Gem (Rank 6 - Emerald) now restores 1800 to 3000 mana and has three charges.
* Ice Block (Frost) is now available on the trainer to all mages at level 30.
yay ice block. and fantasic on the new mana gem sweet
Yay! Finaly something usefull to mages!