Warlords of Draenor hotfixes have been published the 10/26/2015 ! Here is the patch notes :
Patch 6.2.2a Hotfixes: October 26 (Source)
- Fixed an issue that could allow Rune of Power effects to be retained incorrectly.
- Coin of Many Faces should now retain its cosmetic transformations while Timewalking.
- Fixed an issue that could cause Alliance characters that had previously logged out in a Garrison Mine to be disconnected when logging back in.