Update on tow, sorry if Im a bit late :

Totem of Wrath: Now grants a flat amount of spell damage, and all enemies in its radius have an increased chance of being struck by criticals. : raid wide

http://www.mmo-champion.com/index.php

Thats not bad. It may not stack anymore but its still at least usable, alongside haste wrath of air and spell damage flame tounge.
As said before, I think we really need to wait and see how this all works out instead of panicing, especially the shaman boxers.