Daelo posted on the Raids & Dungeons forum about some hotfixes to the Archimonde encounter:
In an effort to apply some of our upcoming 2.2 changes in a more expedited manner, we're hotfixing some elements of the Archimonde encounter. Not every planned change to Archimonde could be hotfixed, the other announced changes will occur with the release of patch 2.2.
The following hotfix changes are now live:
- Archimonde now casts fear in a bit more consistent manner, roughly every 40 seconds. - Fear's cast time is now 1.5 seconds. - Grip of the Legion now has only a 60 yard range. - Red Soul Charge now only silences players for 4 seconds.