Пруфы что должно ускорять их восстановление:
http://us.battle.net/wow/en/forum/topic/2016083078?page=2
Posted by Khazkun
If melee haste affects rune regeneration, that means Icy Talons/Improved Icy Talons affects it as well?
That is correct, but I don't know by how much. At first, I thought it was 1s less on the Rune Generation (which is 10s normally) per 10% of haste. That seems to be wrong according to the tests I did on the PTR at 80% haste.