From the 1.9 Set #3 patch notes:
Can anyone clarify if they're being removed from the game entirely? Or will they be obtainable from some other source? A lot of people have been asking, but I've seen nothing but speculation so far.PVP
* Wrath Stone, Mighty Wrath Stone, and Wrath Spikes are no longer available from Templar Whispers and Solomon Dewey. Existing purchased runes will not be affected.