With the recent beta build, players noticed that the Shaman's Ghost Wolf form was a significantly brighter blue than normal, and many joked that the form was now a "flashbang." Senior Game Designer Aidan Moon commented on the Ghost Wolf brightness, saying that the old version will come back; it'll just take some time.
As seen in the tweet, low-light zones had some definite problems with Ghost Wolf, where the model was essentially invisible; the brightness is only a temporary fix to allow Blizzard time to implement a more permanent one. Once that's taken care of, the look of Ghost Wolf should be back to normal for players.
